INTERNATIONAL COMMISSION ON RADIOLOGICAL PROTECTIONICRP ref: 4841-2910-3441

ICRP Committee 4 Meeting
October 9-15, 2017 – Paris, France
For the first meeting of its new term 2017-2021, the C4 covered a wide range ofissues, including new activities related to its revised mandate.
Existing exposure situations: the C4 reviewed the report of TG 76 on
Radiological Protection from NORM in Industrial Processes, which is expected
to be approved for public consultation in 2018. The C4 also provided advice forcontinuing the preparation of the report of TG 98 on Exposures arising fromContaminated Legacy Sites to be in line with the other publications on existing
exposure situations.
Response to Fukushima: the C4 requested TG 93 on Protection in the Event ofa Nuclear Accident to take into account considerations on environmental andeconomic issues as well as on livestock and pets when finalizing its report updating
Publications 109 and 111. The public consultation is expected in 2018. The C4 alsodecided to begin preparation of a terms of reference for a possible TG addressing
concerns expressed by companies impacted by a nuclear accident (personnel,transport, goods…).
Environmental protection: With its new mandate, the C4 is now involved in several
Task Groups, and the ongoing integration of protection of the environment into thesystem of protection. The report of TG 74 on Dose Coefficients for Non-human
Biota Environmentally Exposed to Radiation has been approved by the Main
Commission as Publication 136. The C4 reviewed the work of TG 72 on Biota
Radiation Weighting Factors for Reference Animals and Plants. The
corresponding report is almost ready for public consultation. The C4 also reviewed,
jointly with C1, the work of TG 99 on Reference Animals and Plants (RAPs)
monographs, whose purpose is to make a link between RAPs and Representative
Organisms for risk assessment. Finally, the C4 discussed the work of TG 105 on
Considering the Environment when Applying the System of RadiologicalProtection. Its report will propose a way for the integration of the protection ofhumans and non-human species in the ICRP system, by using case studies in thedifferent exposure situations.
Foundations and fundamentals: the report of TG 94 on Ethics of RadiologicalProtection, describing the core ethical values of the system of radiologicalprotection (RP), has been approved by the Main Commission for publication. The C4,
in a joint meeting with C3, decided to propose the creation of a joint TG on theapplication of Ethics in Radiological Protection in Medicine.
Topical applications reports: the C4 reviewed the report of TG 97 on Surface andNear-Surface Waste Disposal. Several comments were made and the membershipchanged. The C4 also created a WP to explore the issue of RP in Space Travel anddevelop a Terms of Reference for a Task Group. Further, C4 and C3 decided topropose a joint TG on the application of the ICRP system in Veterinary Practices

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INTERNATIONAL COMMISSION ON RADIOLOGICAL PROTECTION(public and occupational exposures). Because of lack of time, the discussion about
TG 106 on Mobile Sources was postponed.
Interaction with other Committees: The C4 met with C1 and discussed TG 102 onDetriment Calculation and TG 91 on DDREF as well as the issue of environment(see above). The C4 also met with C3 and discussed several issues: veterinary
applications with animals as patients, medical intervention in situations whereequipment and facilities may be contaminated (related to reaction to emergency
situation), and the C3 TG 89 on Occupational RP in Brachytherapy. Finally, theC4 discussed the report of C2 TG 79 on Effective Dose, which will be soon
submitted for public consultation.

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