| Number | Category | Group | Title | 
    
      | 201-7/3 | (S2) | WP3J | Radiometeorological data required for the planning of terrestrial and space communication systems and space research application
 
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      | 202-5/3 | (S2) | WP3J/WP3L | Methods for predicting propagation over the surface of the Earth
           
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      | 203-9/3 | (S2) | WP3K | Propagation prediction methods for terrestrial broadcasting, fixed (broadband access) and mobile services using frequencies above 30 MHz
 
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      | 204-6/3 | (S2) | WP3M | Propagation data and prediction methods required for terrestrial line-of-sight systems
 
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      | 205-2/3 | (S2) | WP3M | Propagation data and prediction methods required for trans-horizon systems
           
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      | 206-4/3 | (S2) | WP3M | Propagation data and prediction methods for fixed- and broadcasting-satellite services
 
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      | 207-5/3 | (S2) | WP3M | Propagation data and prediction methods for satellite mobile and radiodetermination services above about 0.1 GHz
           
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      | 208-6/3 | (S2) | WP3M | Propagation factors in frequency sharing issues affecting space radiocommunication services and terrestrial services
           
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      | 209-2/3 | (S3) | WP3J | Variability and risk parameters in system performance analysis
           
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      | 211-8/3 | (S3) | WP3K | Propagation data and propagation models in the frequency range 300 MHz to 450 GHz for the design of short-range wireless radiocommunication systems
           
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      | 212-3/3 | (S3) | WP3L | Ionospheric properties
           
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      | 213-4/3 | (S3) | WP3L | The short-term forecasting of operational parameters for trans-ionospheric radiocommunication and radionavigation services
           
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      | 214-6/3 | (S2) | WP3L | Radio noise
           
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      | 218-6/3 | (S3) | WP3L | Ionospheric influences on satellite systems
           
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      | 221-2/3 | (S3) | WP3L | Propagation by way of sporadic E and other ionization
           Note - Suppressed on 28/07/15 (CACE/744)
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      | 222-5/3 | (S3) | WP3L | Measurements and data banks of ionospheric characteristics and radio noise
           
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      | 225-7/3 | (S3) | WP3L | The prediction of propagation factors affecting systems at LF and MF including the use of digital modulation techniques
 
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      | 226-5/3 | (S3) | WP3L/WP3M | Ionospheric and tropospheric characteristics along satellite-to-satellite paths
           
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      | 227-1/3 | (S3) | WP3L | HF channel simulation
           Note - Suppressed on 17/02/12 (CACE/562)
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      | 228-3/3 | (C1) | WP3M | Propagation data required for the planning of radiocommunication systems operating above 275 GHz
 
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      | 229-3/3 | (S3) | WP3L | Prediction of sky-wave propagation conditions, signal intensity, circuit performance and reliability at frequencies between about 1.6 and 30 MHz, in particular for systems using digital modulation techniques
 
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      | 230-3/3 | (S2) | WP3J/WP3L | Prediction methods and models applicable to power line telecommunication systems
 
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      | 231-1/3 | (S2) | WP3L | The effect of electromagnetic emissions from man-made sources on the radiocommunication systems and networks
           
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      | 232-1/3 | (S2) | WP3J | The effect of nanostructure materials on propagation
           Note - Suppressed on 22/11/17 (CACE/846)
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      | 233-1/3 | (S2) | WP3M | Methods for the prediction of propagation path losses between an airborne platform and a satellite, ground terminal or another airborne platform
           
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      | 234/3 | (S3) | WP3L | Computation of ionospheric scintillation indices
           
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      | 235-1/3 | (S3) | WP3K | Impact of engineered electromagnetic surfaces on radiowave propagation
           
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      | 236/3 | (S2) | WP3J/WP3K/WP3L/WP3M | Use of machine learning methods for radiowave propagation studies
           
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      | 237/3 | (S2) | WP3J | Propagation characteristics and prediction methods required for lunar radiocommunication
           
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