| L.1 | Construction, installation and protection of telecommunication cables in public networks
		 
 | 
| L.2 | Impregnation of wooden poles
		 
 | 
| L.3 | Armouring of cables
		 
 | 
| L.4 | Aluminium cable sheaths
		 
 | 
| L.5 | Cable sheaths made of metals other than lead or aluminium
		 
 | 
| L.6 | Methods of keeping cables under gas pressure
		 
 | 
| L.7 | Application of joint cathodic protection
		 
 | 
| L.8 | Corrosion caused by alternating current
		 
 | 
| L.9 | Methods of terminating metallic cable conductors
		 
 | 
| L.10 | Optical fibre cables for duct and tunnel application
		 
 | 
| L.11 | Joint use of tunnels by pipelines and telecommunication cables, and the standardization of underground duct plans
		 
 | 
| L.12 | Optical fibre splices
		 
 | 
| L.13 | Performance requirements for passive optical nodes: Sealed closures for outdoor environments
		 
 | 
| L.14 | Measurement method to determine the tensile performance of optical fibre cables under load
		 
 | 
| L.15 | Optical local distribution networks - Factors to be considered for their construction
		 
 | 
| L.16 | Conductive plastic material (CPM) as protective covering for metal cable sheaths
		 This Recommendation was deleted on 2011-07-08. Conductive plastic materials have not been used in the telecommunication cable industry for 20 years; therefore, there is no longer any need to standardize CPM.
 | 
| L.17 | Implementation of connecting customers into the public switched telephone network (PSTN) via optical fibres
		 
 | 
| L.18 | Sheath closures for terrestrial copper telecommunication cables
		 
 | 
| L.19 | Multi-pair copper network cable supporting shared multiple services such as POTS, ISDN and xDSL
		 
 | 
| L.20 | Creation of a fire security code for telecommunication facilities
		 
 | 
| L.21 | Fire detection and alarm systems, detector and sounder devices
		 
 | 
| L.22 | Fire protection
		 
 | 
| L.23 | Fire extinction - Classification and location of fire extinguishing installations and equipment on premises
		 
 | 
| L.24 | Classification of outside plant waste
		 
 | 
| L.25 | Optical fibre cable network maintenance
		 
 | 
| L.26 | Optical fibre cables for aerial application
		 
 | 
| L.27 | Method for estimating the concentration of hydrogen in optical fibre cables
		 
 | 
| L.28 | External additional protection for marinized terrestrial cables
		 
 | 
| L.29 | As-laid report and maintenance/repair log for marinized terrestrial cable installation
		 
 | 
| L.30 | Markers on marinized terrestrial cables
		 
 | 
| L.31 | Optical fibre attenuators
		 
 | 
| L.32 | Protection devices for through-cable penetrations of fire-sector partitions
		 
 | 
| L.33 | Periodic control of fire extinction devices in telecommunication buildings
		 
 | 
| L.34 | Installation of Optical Fibre Ground Wire (OPGW) cable
		 
 | 
| L.35 | Installation of optical fibre cables in the access network
		 
 | 
| L.36 | Single-mode fibre optic connectors
		 
 | 
| L.37 | Optical branching components (non-wavelength selective)
		 
 | 
| L.38 | Use of trenchless techniques for the construction of underground infrastructures for telecommunication cable installation
		 
 | 
| L.39 | Investigation of the soil before using trenchless techniques
		 
 | 
| L.40 | Optical fibre outside plant maintenance support, monitoring and testing system
		 
 | 
| L.41 | Maintenance wavelength on fibres carrying signals
		 
 | 
| L.42 | Extending optical fibre solutions into the access network
		 
 | 
| L.43 | Optical fibre cables for buried application
		 
 | 
| L.44 | Electric power supply for equipment installed as outside plant
		 
 | 
| L.45 | Minimizing the effect on the environment from the outside plant in telecommunication networks
		 
 | 
| L.46 | Protection of telecommunication cables and plant from biological attack
		 
 | 
| L.47 | Access facilities using hybrid fibre/copper networks
		 
 | 
| L.48 | Mini-trench installation technique
		 
 | 
| L.49 | Micro-trench installation technique
		 
 | 
| L.50 | Requirements for passive optical nodes: Optical distribution frames for central office environments
		 
 | 
| L.51 | Passive node elements for fibre optic networks - General principles and definitions for characterization and performance evaluation
		 
 | 
| L.52 | Deployment of Passive Optical Networks (PON)
		 
 | 
| L.53 | Optical fibre maintenance criteria for access networks
		 
 | 
| L.54 | Splice closure for marinized terrestrial cables (MTC)
		 
 | 
| L.55 | Digital database for marine cables and pipelines
		 
 | 
| L.56 | Installation of optical fibre cables along railways
		 
 | 
| L.57 | Air-assisted installation of optical fibre cables
		 
 | 
| L.58 | 
[Withdrawn] Optical fibre cables: Special needs for access network
		 
 | 
| L.59 | Optical fibre cables for indoor applications
		 
 | 
| L.60 | Construction of optical/metallic hybrid cables
		 
 | 
| L.61 | Optical fibre cable installation by floating technique
		 
 | 
| L.62 | Practical aspects of unbundling services by multiple operators in copper access networks
		 
 | 
| L.63 | Safety procedures for outdoor installations
		 
 | 
| L.64 | ID tag requirements for infrastructure and network elements management
		 
 | 
| L.65 | Optical fibre distribution of access networks
		 
 | 
| L.66 | Optical fibre cable maintenance criteria for in-service fibre testing in access networks
		 
 | 
| L.67 | Small count optical fibre cables for indoor applications
		 
 | 
| L.68 | Optical fibre cable maintenance support, monitoring and testing system for optical fibre cable networks carrying high total optical power
		 
 | 
| L.69 | Personal digital assistant requirements and relevant data structure for infrastructure and network elements management
		 
 | 
| L.70 | Managing active electronics in the outside plant
		 
 | 
| L.71 | Design, construction, and installation of network cables for broadband access including metallic networks connected to optical fibre networks
		 
 | 
| L.72 | Databases for optical access network infrastructure
		 
 | 
| L.73 | Methods for inspecting and repairing underground plastic ducts
		 
 | 
| L.74 | Maintenance of cable tunnels
		 
 | 
| L.75 | Test, acceptance and maintenance methods of copper subscriber pairs
		 
 | 
| L.76 | Copper loop requirements for various technologies including indoor and structured cabling
		 
 | 
| L.77 | Installation of optical fibre cables inside sewer ducts
		 
 | 
| L.78 | Optical fibre cable construction for sewer duct applications
		 
 | 
| L.79 | Optical fibre cable elements for microduct blowing-installation application
		 
 | 
| L.80 | Operations support system requirements for infrastructure and network elements management using ID techonology
		 
 | 
| L.81 | Monitoring systems for outside plant facilities
		 
 | 
| L.82 | Optical cabling shared with multiple operators in buildings
		 
 | 
| L.83 | Low impact trenching technique for FTTx networks
		 
 | 
| L.84 | Fast mapping of underground networks
		 
 | 
| L.85 | Optical fibre identification for the maintenance of optical access networks
		 
 | 
| L.86 | Considerations on the installation site of branching components in passive optical networks for fibre to the home
		 
 | 
| L.87 | Optical fibre cables for drop applications
		 
 | 
| L.88 | Management of poles carrying overhead telecommunication lines
		 
 | 
| L.89 | Design of suspension wires, telecommunication poles and guy-lines for optical access networks
		 
 | 
| L.90 | Optical access network topologies for broadband services
		 
 | 
| L.92 | Disaster management for outside plant facilities
		 
 | 
| L.93 | Optical fibre cable maintenance support, monitoring and testing systems for optical fibre trunk networks
		 
 | 
| L.94 | Use of global navigation satellite systems to create a referenced network map
		 
 | 
| L.100 | Optical fibre cables for duct and tunnel application
		 
 | 
| L.101 | Optical fibre cables for directly buried application
		 
 | 
| L.102 | Optical fibre cables for aerial application
		 
 | 
| L.103 | Optical fibre cables for indoor applications
		 
 | 
| L.104 | Small count optical fibre cables for indoor applications
		 
 | 
| L.105 | Optical fibre cables for drop applications
		 
 | 
| L.106 | 
[Withdrawn] Optical fibre cables: Special needs for access network
		 This Recommendation was withdrawn on 14 March 2024 because its contents had become obsolete.
 | 
| L.107 | Optical fibre cable construction for sewer duct applications
		 
 | 
| L.108 | Optical fibre cable elements for microduct blowing-installation application
		 
 | 
| L.109 | Construction of optical/metallic hybrid cables
		 
 | 
| L.109.1 | Type II optical/electrical hybrid cables for access points and other terminal equipment
		 
 | 
| L.110 | Optical fibre cables for direct surface application
		 
 | 
| L.111 | Optical fibre cables for in-home applications
		 
 | 
| L.125 | Measurement method to determine the tensile performance of optical fibre cables under load
		 
 | 
| L.126 | Method for estimating the concentration of hydrogen in optical fibre cables
		 
 | 
| L.150 | Installation of optical fibre cables in the access network
		 
 | 
| L.151 | Installation of optical ground wire cable
		 
 | 
| L.152 | Use of trenchless techniques for the construction of underground infrastructures for telecommunication cable installation
		 
 | 
| L.153 | Mini-trench installation technique
		 
 | 
| L.154 | Micro-trench installation technique
		 
 | 
| L.155 | Low impact trenching technique for FTTx networks
		 
 | 
| L.156 | Air-assisted installation of optical fibre cables
		 
 | 
| L.157 | Optical fibre cable installation by floating technique
		 
 | 
| L.158 | Installation of optical fibre cables along railways
		 
 | 
| L.159 | Installation of optical fibre cables inside sewer ducts
		 
 | 
| L.160 | Optical cabling shared with multiple operators in buildings
		 
 | 
| L.161 | Protection of telecommunication cables and plant from biological attack
		 
 | 
| L.162 | Microduct technology and its applications
		 
 | 
| L.163 | Criteria for optical cable installation with minimal existing infrastructure
		 
 | 
| L.200 | Passive node elements for fibre optic networks - General principles and definitions for characterization and performance evaluation
		 
 | 
| L.201 | Performance requirements for passive optical nodes: Sealed closures for outdoor environments
		 
 | 
| L.202 | Requirements for passive optical nodes: Optical distribution frames for central office environments
		 
 | 
| L.203 | Electric power supply for equipment installed as outside plant
		 
 | 
| L.204 | Managing active electronics in the outside plant
		 
 | 
| L.205 | Joint use of tunnels by pipelines and telecommunication cables, and the standardization of underground duct plans
		 
 | 
| L.206 | Requirements for passive optical nodes - Outdoor optical cross-connect cabinet
		 
 | 
| L.207 | Passive node elements with automated ID tag detection
		 
 | 
| L.208 | Requirements for passive optical nodes - Fibre distribution box
		 
 | 
| L.209 | Requirements for fibre optic network terminal box (FONT)
		 
 | 
| L.210 | Requirements for passive optical nodes - Optical wall outlets and extender boxes
		 
 | 
| L.250 | Topologies for optical access network
		 
 | 
| L.251 | Databases for optical access network infrastructure
		 
 | 
| L.252 | Considerations on the installation site of branching components in passive optical networks for fibre to the home
		 
 | 
| L.253 | Access facilities using hybrid fibre/copper networks
		 
 | 
| L.254 | Practical aspects of unbundling services by multiple operators in copper access networks
		 
 | 
| L.255 | 
[Withdrawn] Implementation of connecting customers into the public switched telephone network (PSTN) via optical fibres
		 
 | 
| L.256 | Minimizing the effect on the environment from the outside plant in telecommunication networks
		 
 | 
| L.257 | Investigation of the soil before using trenchless techniques
		 
 | 
| L.258 | Safety procedures for outdoor installations
		 
 | 
| L.259 | Methods for inspecting and repairing underground plastic ducts
		 
 | 
| L.260 | Fast mapping of underground networks
		 
 | 
| L.261 | Design of suspension wires, telecommunication poles and guy-lines for optical access networks
		 
 | 
| L.262 | Use of global navigation satellite systems to create a referenced network map
		 
 | 
| L.300 | Optical fibre cable network maintenance
		 
 | 
| L.301 | Maintenance wavelength on fibres carrying signals
		 
 | 
| L.302 | Optical fibre outside plant maintenance support, monitoring and testing system
		 
 | 
| L.310 | Optical fibre maintenance depending on topologies of access networks
		 
 | 
| L.311 | Optical fibre cable maintenance support, monitoring and testing systems for optical fibre trunk networks
		 
 | 
| L.312 | Optical fibre cable maintenance support, monitoring and testing system for optical fibre cable networks carrying high total optical power
		 
 | 
| L.313 | Optical fibre cable maintenance criteria for in-service fibre testing in access networks
		 
 | 
| L.314 | Optical fibre identification for the maintenance of optical access networks
		 
 | 
| L.315 | Water detection in underground closures for the maintenance of optical fibre cable networks with optical monitoring system
		 
 | 
| L.316 | Cable identification for the construction and maintenance of optical fibre cable networks by optical sensing techniques
		 
 | 
| L.330 | Telecommunication infrastructure facility management
		 
 | 
| L.340 | Maintenance of underground telecommunication facilities
		 
 | 
| L.341 | Maintenance of telecommunication poles and overhead facilities
		 
 | 
| L.360 | Operations support system requirements for network infrastructure management using ID technology
		 
 | 
| L.361 | ID tag requirements for infrastructure and network elements management
		 
 | 
| L.362 | Personal digital assistant requirements and relevant data structure for infrastructure and network elements management
		 
 | 
| L.390 | Disaster management for outside plant facilities
		 
 | 
| L.391 | Monitoring systems for outside plant facilities
		 
 | 
| L.392 | Disaster management for improving network resilience and recovery with movable and deployable information and communication technology (ICT) resource units
		 
 | 
| L.400 | Optical fibre splices
		 
 | 
| L.401 | Optical fibre attenuators
		 
 | 
| L.402 | Single-mode fibre optic connectors
		 
 | 
| L.403 | Optical branching components (non-wavelength selective)
		 
 | 
| L.404 | Field mountable single-mode optical fibre connectors
		 
 | 
| L.430 | External additional protection for marinized terrestrial cables
		 
 | 
| L.431 | As-laid report and maintenance/repair log for marinized terrestrial cable installation
		 
 | 
| L.432 | Markers on marinized terrestrial cables
		 
 | 
| L.433 | Splice closure for marinized terrestrial cables (MTC)
		 
 | 
| L.434 | Digital database for marine cables and pipelines
		 
 | 
| L.1000 | Universal power adapter and charger solution for mobile terminals and other hand-held ICT devices
		 
 | 
| L.1001 | External universal power adapter solutions for stationary information and communication technology devices
		 
 | 
| L.1002 | External universal power adapter solutions for portable information and communication technology devices
		 
 | 
| L.1004 | Universal fast-charging solution for mobile terminals
		 
 | 
| L.1005 | Test suites for assessment of the universal charger solution
		 
 | 
| L.1006 | Test suites for assessment of the external universal power adapter solutions for stationary information and communication technology devices
		 
 | 
| L.1007 | Test suites for assessment of the external universal power adapter solutions for portable information and communication technology devices
		 
 | 
| L.1010 | Green battery solutions for mobile phones and other hand-held information and communication technology devices
		 
 | 
| L.1011 | Guidelines for the durability assessment of Lithium-ion Batteries
		 
 | 
| L.1015 | Criteria for evaluation of the environmental impact of mobile phones
		 
 | 
| L.1016 | Method for evaluation of the environmental health and safety performance of true wireless stereo headphones
		 
 | 
| L.1017 | Environmental performance scoring of smartphones
		 
 | 
| L.1018 | Specification for the durability assessment of mobile telecommunication terminals
		 
 | 
| L.1020 | Circular economy: Guide for operators and suppliers on approaches to migrate towards circular ICT goods and networks
		 
 | 
| L.1021 | Extended producer responsibility - Guidelines for sustainable e-waste management
		 
 | 
| L.1022 | Circular economy: Definitions and concepts for material efficiency for information and communication technology
		 
 | 
| L.1023 | Assessment method for circularity performance scoring
		 
 | 
| L.1024 | The potential impact of selling services instead of equipment on waste creation and the environment - Effects on global information and communication technology
		 
 | 
| L.1025 | Assessment of material efficiency of information and communication technology network infrastructure goods - Server and data storage product secure data deletion functionality
		 
 | 
| L.1027 | Assessment of material efficiency of ICT network infrastructure goods (circular economy) - Server and data storage product disassembly and disassembly instruction
		 
 | 
| L.1028 | Evaluating the global-warming-potential impact of extending the operating lifetime of information and communication technology equipment
		 
 | 
| L.1030 | E-waste management framework for countries
		 
 | 
| L.1031 | Guideline for the development of an e-waste management system and achieving the e-waste targets of the Connect 2030 Agenda
		 
 | 
| L.1032 | Guidelines and certification schemes for e-waste recyclers
		 
 | 
| L.1033 | Guidance for institutions of higher learning to contribute in the effective life cycle management of e-equipment and e-waste
		 
 | 
| L.1034 | Adequate assessment and sensitization on counterfeit information and communication technology products and their environmental impact
		 
 | 
| L.1035 | Sustainable management of batteries
		 
 | 
| L.1036 | Scheduled waste management for a base station (inclusive of e-waste)
		 
 | 
| L.1037 | Requirements for the collection, transportation, storage, dismantling, valorization and final disposal of WEEE
		 
 | 
| L.1040 | Effects of information and communication technology-enabled autonomy on vehicles longevity and waste creation
		 
 | 
| L.1050 | Methodology to identify key equipment for environmental impact and e- waste generation assessment of network architectures
		 
 | 
| L.1060 | General principles for the green supply chain management of information and communication technology manufacturing industry
		 
 | 
| L.1061 | Circular public procurement of information and communication technologies
		 
 | 
| L.1070 | Global digital sustainable product passport opportunities to achieve a circular economy
		 
 | 
| L.1071 | A model for digital product passport information on sustainability and circularity
		 
 | 
| L.1080 | Assessment of material efficiency of information and communication technology network infrastructure goods - Server and data storage product availability of firmware and of security updates to firmware
		 
 | 
| L.1081 | Good practices for the sanitization of the information storage media in end-of-life information and communication technology user devices
		 
 | 
| L.1100 | Procedure for recycling rare metals in information and communication technology goods
		 
 | 
| L.1101 | Measurement methods to characterize rare metals in information and communication technology goods
		 
 | 
| L.1102 | Use of printed labels for communicating information on rare metals in information and communication technology goods
		 
 | 
| L.1200 | Direct current power feeding interface up to 400 V at the input to telecommunication and ICT equipment
		 
 | 
| L.1201 | Architecture of power feeding systems of up to 400 VDC
		 
 | 
| L.1202 | Methodologies for evaluating the performance of an up to 400 VDC power feeding system and its environmental impact
		 
 | 
| L.1203 | Colour and marking identification of up to 400 VDC power distribution for information and communication technology systems
		 
 | 
| L.1204 | Extended architecture of power feeding systems of up to 400 VDC
		 
 | 
| L.1205 | Interfacing of renewable energy or distributed power sources to up to 400 VDC power feeding systems
		 
 | 
| L.1206 | Impact on information and communication technology equipment architecture of multiple AC, -48 VDC or up to 400 VDC power inputs
		 
 | 
| L.1207 | Progressive migration of a telecommunication/information and communication technology site to 400 VDC sources and distribution
		 
 | 
| L.1210 | Sustainable power-feeding solutions for 5G networks
		 
 | 
| L.1220 | Innovative energy storage technology for stationary use - Part 1: Overview of energy storage
		 
 | 
| L.1221 | Innovative energy storage technology for stationary use - Part 2: Battery
		 
 | 
| L.1222 | Innovative energy storage technology for stationary use - Part 3: Supercapacitor technology
		 
 | 
| L.1230 | Specifications of 10 kVAC input and up to 400 VDC output integrated power system in data centre and telecommunication room
		 
 | 
| L.1240 | Evaluation method of safety operations and energy saving for power supply systems in telecommunication rooms or buildings
		 
 | 
| L.1241 | Methodologies for evaluating the functionality and performance of power supply units configured for servers
		 
 | 
| L.1260 | Reference model of a factory energy management system
		 
 | 
| L.1300 | Best practices for green data centres
		 
 | 
| L.1301 | Minimum data set and communication interface requirements for data centre energy management
		 
 | 
| L.1302 | Assessment of energy efficiency on infrastructure in data centres and telecom centres
		 
 | 
| L.1303 | Functional requirements and framework of green data centre energy-saving management system
		 
 | 
| L.1304 | Procurement criteria for sustainable data centres
		 
 | 
| L.1305 | Data centre infrastructure management system based on big data and artificial intelligence technology
		 
 | 
| L.1306 | Specification of an edge data centre infrastructure
		 
 | 
| L.1307 | Energy efficiency in micro data centres for edge computing
		 
 | 
| L.1310 | Energy efficiency metrics and measurement methods for telecommunication equipment
		 
 | 
| L.1311 | Energy efficiency measurement methodology and metrics for heterogeneous servers
		 
 | 
| L.1315 | Standardization terms and trends in energy efficiency
		 
 | 
| L.1316 | Energy efficiency framework
		 
 | 
| L.1317 | Guidelines on energy efficient blockchain systems
		 
 | 
| L.1318 | Q factor: A fundamental metric expressing integrated circuit energy efficiency
		 
 | 
| L.1320 | Energy efficiency metrics and measurement for power and cooling equipment for telecommunications and data centres
		 
 | 
| L.1321 | Reference operational model and interface for improving energy efficiency of ICT network hosts
		 
 | 
| L.1325 | Green ICT solutions for telecom network facilities
		 
 | 
| L.1326 | Requirements and use cases of liquid cooling solutions and high energy efficiency solutions for 5G BBU in centralized-RAN mode
		 
 | 
| L.1327 | Guidelines on the selection of cooling technologies for data centres in multiple scenarios
		 
 | 
| L.1328 | Specification for waste heat reuse in telecommunication rooms and data centers
		 
 | 
| L.1330 | Energy efficiency measurement and metrics for telecommunication networks
		 
 | 
| L.1331 | Assessment of mobile network energy efficiency
		 
 | 
| L.1332 | Total network infrastructure energy efficiency metrics
		 
 | 
| L.1333 | Carbon data intensity for network energy performance monitoring
		 
 | 
| L.1340 | Informative values on the energy efficiency of telecommunication equipment
		 
 | 
| L.1350 | Energy efficiency metrics of a base station site
		 
 | 
| L.1351 | Energy efficiency measurement methodology for base station sites
		 
 | 
| L.1360 | Energy control for the software-defined networking architecture
		 
 | 
| L.1361 | Measurement method for energy efficiency of network functions virtualization
		 
 | 
| L.1362 | Power management capabilities of the future energy telecommunication network nodes - Enhanced interface for power management in network function virtualization environments
		 
 | 
| L.1370 | Sustainable and intelligent building services
		 
 | 
| L.1371 | A methodology for assessing and scoring the sustainability performance of office buildings
		 
 | 
| L.1380 | Smart energy solution for telecom sites
		 
 | 
| L.1381 | Smart energy solutions for data centres
		 
 | 
| L.1382 | Smart energy solution for telecommunication rooms
		 
 | 
| L.1383 | Smart energy solutions for city and home applications
		 
 | 
| L.1384 | Implementation of a virtual micro power station at base station sites
		 
 | 
| L.1390 | Energy saving technologies and best practices for 5G radio access network (RAN) equipment
		 
 | 
| L.1391 | Specification of IMT-2020 network sharing and co-construction adapting to climate change mitigation
		 
 | 
| L.1395 | Monitoring and Control Interface for Infrastructure Equipment (Power, Cooling and Building Environment Systems used in Telecommunication Networks) - Generic Interface
		 
 | 
| L.1396 | Monitoring and Control Interface for Infrastructure Equipment (Power, Cooling and Building Environment Systems used in Telecommunication Networks) - ICT equipment power, energy and environmental parameters monitoring information model
		 
 | 
| L.1397 | Monitoring and control interface for infrastructure equipment (Power, Cooling and environment systems used in telecommunication networks) - Battery system with integrated control and monitoring information model)
		 
 | 
| L.1400 | Overview and general principles of methodologies for assessing the environmental impact of information and communication technologies
		 
 | 
| L.1410 | Methodology for environmental life cycle assessments of information and communication technology goods, networks and services
		 
 | 
| L.1420 | Methodology for energy consumption and greenhouse gas emissions impact assessment of information and communication technologies in organizations
		 
 | 
| L.1430 | Methodology for assessment of the environmental impact of information and communication technology greenhouse gas and energy projects
		 
 | 
| L.1440 | Methodology for environmental impact assessment of information and communication technologies at city level
		 
 | 
| L.1450 | Methodologies for the assessment of the environmental impact of the information and communication technology sector
		 
 | 
| L.1451 | Methodology for assessing the aggregated positive sector-level impacts of ICT in other sectors
		 
 | 
| L.1460 | Connect 2020 greenhouse gases emissions - Guidelines
		 
 | 
| L.1470 | Greenhouse gas emissions trajectories for the information and communication technology sector compatible with the UNFCCC Paris Agreement
		 
 | 
| L.1471 | Guidance and criteria for information and communication technology organizations on setting Net Zero targets and strategies
		 
 | 
| L.1480 | Enabling the Net Zero transition: Assessing how the use of information and communication technology solutions impacts greenhouse gas emissions of other sectors
		 
 | 
| L.1481 | Guidance on how to address the Connect 2030 targets on net greenhouse gas abatement
		 
 | 
| L.1490 | Framework and functional requirements of a greenhouse gas emissions management system using digital technology for the public sector
		 
 | 
| L.1491 | Measurement methodology and best practices for decarbonization of industrial park in support of net zero
		 
 | 
| L.1500 | Framework for information and communication technologies and adaptation to the effects of climate change
		 
 | 
| L.1501 | Best practices on how countries can utilize ICTs to adapt to the effects of climate change
		 
 | 
| L.1502 | Adapting information and communication technology infrastructure to the effects of climate change
		 
 | 
| L.1503 | Use of information and communication technology for climate change adaptation in cities
		 
 | 
| L.1504 | ICT and adaptation of agriculture to the effects of climate change
		 
 | 
| L.1505 | Information and communication technology and adaptation of the fisheries sector to the effects of climate change
		 
 | 
| L.1506 | Framework of climate change risk assessment for telecommunication and electrical facilities
		 
 | 
| L.1507 | Use of ICT sites to support environmental sensing
		 
 | 
| L.1508 | Framework for climate change adaptation in coastal cities using information and communication technology and digital technologies
		 
 | 
| L.1510 | Environmental key performance indicators for digital infrastructure adapting to climate change
		 
 | 
| L.1600 | Overview of key performance indicators in smart sustainable cities
		 
 | 
| L.1601 | Key performance indicators related to the use of information and communication technology in smart sustainable cities
		 
 | 
| L.1602 | Key performance indicators related to the sustainability impacts of information and communication technology in smart sustainable cities
		 
 | 
| L.1603 | Key performance indicators for smart sustainable cities to assess the achievement of sustainable development goals
		 
 | 
| L.1604 | Development framework for bioeconomy in cities and communities
		 
 | 
| L.1610 | City science application framework
		 
 | 
| L.1620 | Guide to circular cities
		 
 | 
| L.1621 | Key performance indicators for circular cities
		 
 | 
| L.1630 | Framework of a building infrastructure management system for sustainable cities
		 
 | 
| L.1631 | Reference model for firefighting infrastructure management systems for buildings in sustainable cities
		 
 | 
| L.1632 | Identification method for building infrastructure equipment in a sustainable city
		 
 | 
| L.1640 | Methodology for dynamic monitoring and analysis of greenhouse gas emissions in cities
		 
 | 
| L.1700 | Requirements and framework for low-cost sustainable telecommunications infrastructure for rural communications in developing countries
		 
 | 
| L.Sup1 | ITU-T L.1310 - Supplement on energy efficiency for telecommunication equipment
		 
 | 
| L.Sup2 | ITU-T L.1410 - Case studies
		 
 | 
| L.Sup3 | ITU-T L.1430 - Guidance on practical application of ITU-T L.1430 to a real-time navigation service
		 
 | 
| L.Sup4 | Guidelines for developing a sustainable e-waste management system
		 
 | 
| L.Sup5 | Life-cycle management of ICT goods
		 
 | 
| L.Sup6 | ITU-T L.1300 - Supplement on a validation test of a data centre cooling method using renewable energy in a cold region
		 
 | 
| L.Sup7 | ITU-T L.1300 - Supplement on rationale for minimum data set for evaluating energy efficiency and for controlling data centre equipment in view of power saving
		 
 | 
| L.Sup8 | ITU-T L.1300 - Supplement on potential for primary energy savings in TLC/ICT centres through free cooling
		 
 | 
| L.Sup9 | ITU-T L.1300 - Supplement on case study of reduction of air-conditioning energy by optical fibre based thermometry
		 
 | 
| L.Sup10 | ITU-T L.1300 - Supplement on verification experiments related to increase of efficiency of air-conditioning and control technologies at a data centre
		 
 | 
| L.Sup11 | ITU-T L.1300 - Supplement on verification test and feasibility study of energy and space efficient cooling systems for data centres with high density ICT devices
		 
 | 
| L.Sup12 | ITU-T L.1300 - Supplement on experimental studies on plates and ducts installed at equipment inlets and outlets
		 
 | 
| L.Sup13 | ITU-T L.1410 - Case study: A hybrid approach-based comparative analysis of the environmental impact of a baseline data centre and an energy-efficient data centre
		 
 | 
| L.Sup14 | ITU-T L.1500 -  Standardization gap analysis for smart water management
		 
 | 
| L.Sup15 | ITU-T L.1500 series - Requirements for water sensing and early warning systems
		 
 | 
| L.Sup16 | ITU-T Y.4550-Y.4699 - Smart water management in cities
		 
 | 
| L.Sup17 | ITU-T L.1600 - Definition for smart sustainable city
		 
 | 
| L.Sup18 | ITU-T Y.4050-Y.4099 - Smart sustainable cities: An analysis of definitions
		 
 | 
| L.Sup19 | ITU-T Y.4900 Series - Key performance indicators definitions for smart sustainable cities
		 
 | 
| L.Sup20 | Green public ICT procurement
		 
 | 
| L.Sup21 | Implementation guidance for small- and medium-sized enterprises on information and communication technology supply chain due diligence concerning conflict minerals
		 
 | 
| L.Sup22 | ITU-T L.1700 - Low-cost sustainable telecommunication for rural communications in developing countries using fibre optic cable
		 
 | 
| L.Sup23 | ITU-T L.1700 - Low-cost sustainable telecommunications for rural communications in developing countries using microwave and millimetre radio links
		 
 | 
| L.Sup24 | ITU-T L.1500 - Overview of climate change effects and possible impacts
		 
 | 
| L.Sup25 | ITU-T L.1502 - Best practices for infrastructure adaptation to climate change
		 
 | 
| L.Sup26 | ITU-T L.1410 - Case study: The assessment of greenhouse gas emissions of a hybrid satellite broadband system over its life cycle
		 
 | 
| L.Sup27 | Supplement on success stories on e-waste management
		 
 | 
| L.Sup28 | Circular economy in information and communication technology; definition of approaches, concepts and metrics
		 
 | 
| L.Sup29 | ITU-T L.1700 - Low-cost sustainable telecommunication for rural communications in developing countries using cellular radio technologies
		 
 | 
| L.Sup30 | ITU-T L.1700 - Setting up a low-cost sustainable telecommunication network for rural communications in developing countries using cellular network with capacity transfer
		 
 | 
| L.Sup31 | ITU-T L.1700 - Setting up a low-cost sustainable telecommunication network for rural communications in developing countries using satellite systems
		 
 | 
| L.Sup32 | Supplement for eco-specifications and rating criteria for mobile phones eco-rating programmes
		 
 | 
| L.Sup33 | Assessment of energy consumption of information and communication technology services
		 
 | 
| L.Sup34 | Example of hybrid lice cycle assessment of the aggregated second order effects of selected information and communication technology services
		 
 | 
| L.Sup35 | Framework of disaster management for network resilience and recovery
		 
 | 
| L.Sup36 | ITU-T L.1310 - Study on methods and metrics to evaluate energy efficiency for future 5G systems
		 
 | 
| L.Sup37 | Guidance to operators of mobile networks, fixed networks and data centres on setting 1.5°C aligned targets compliant with Recommendation ITU-T L.1470
		 
 | 
| L.Sup38 | ITU-T L.1470 -  Guidance to information and communication technology manufacturers on setting 1.5°C aligned targets compliant with Recommendation ITU-T L.1470
		 
 | 
| L.Sup39 | ITU-T L.1470 -  Optical fibre cable Recommendations and standardization guideline
		 
 | 
| L.Sup40 | Scoring tool to assess the sustainability performance of office buildings
		 
 | 
| L.Sup41 | Requirements on energy efficiency measurement models and the role of artificial intelligence and big data
		 
 | 
| L.Sup42 | Guidelines on the environmental efficiency of machine learning processes in supply chain management
		 
 | 
| L.Sup43 | Smart energy saving of 5G base stations: Traffic forecasting and strategy optimization of 5G wireless network energy consumption based on artificial intelligence and other emerging technologies
		 
 | 
| L.Sup44 | Guidelines on best practices and environment-friendly policies for effective information and communication technology deployment methods
		 
 | 
| L.Sup45 | Radio base station site best practices
		 
 | 
| L.Sup46 | Definitions and recent trends in circular cities
		 
 | 
| L.Sup47 | Examples of resource saving within the information and communication technology sector
		 
 | 
| L.Sup48 | Data centre energy saving: Application of artificial intelligence technology in improving energy efficiency of telecommunication room and data centre infrastructure
		 
 | 
| L.Sup49 | Overview on adaptation to climate change for information and communication technology networks
		 
 | 
| L.Sup50 | Case studies on implementation of cities' circular actions
		 
 | 
| L.Sup51 | Case studies on city science application framework
		 
 | 
| L.Sup52 | Computer processing, data management and energy perspective
		 
 | 
| L.Sup53 | Guidelines on the implementation of environmental efficiency criteria for artificial intelligence and other emerging technologies
		 
 | 
| L.Sup54 | Guidance for assessing the greenhouse gas emissions consequences of the financial effects generated by information and communication technology
		 
 | 
| L.Sup55 | Environmental efficiency and impacts on United Nations Sustainable Development Goals of data centres and cloud computing
		 
 | 
| L.Sup56 | Guidelines for connecting cities and communities with the Sustainable Development Goals
		 
 | 
| L.Sup57 | ITU-T L.1420 - Scope 3 guidance for telecommunication operators
		 
 | 
| L.Sup58 | ITU-T L.250 - National experiences for FTTx network architectures
		 
 | 
| L.Sup59 | ITU-T L.1700 series - Low-cost sustainable telecommunication solution in rural and remote areas using WLAN/Wi-Fi for conventional telecom services like voice calling using SIP
		 
 | 
| L.Sup60 | ITU-T L.1410 - Example of a life cycle assessment (LCA) of a mobile phone
		 
 | 
| L.Sup61 | Standardized glossary of terms of AI and other Emerging Technologies to Ensure Environmental Efficiency
		 
 |