In legal practice, ICRP refers to the International Commission on Radiological Protection, the independent international charity whose scientific recommendations shape modern protection against ionising radiation. Its publications (for example on dose limits, risk coefficients and the principles of justification and optimisation/ALARA) are not legally binding, and the term itself is not typically defined in legislation, but they are highly persuasive and widely reflected in regulatory standards and guidance.
In the UK, the Ionising Radiations Regulations 2017 (IRR17), the Ionising Radiations (Medical Exposure) Regulations 2017 and environmental permitting regimes implement Basic Safety Standards derived from ICRP recommendations. Regulators such as HSE, the Office for Nuclear Regulation and the environment agencies commonly rely on ICRP material when setting expectations and assessing compliance. The position is broadly consistent in Ireland, where national Basic Safety Standards regulations and regulatory practice (including by the Environmental Protection Agency) are informed by ICRP advice.
Practitioners cite ICRP when advising on compliance, drafting safety assessments, permit applications and medical exposure policies, and in disputes or enforcement concerning radiological protection. ICRP operates as an independent registered charity established to advance, for public benefit, the science and practice of radiological protection.