21.—(1) SEPA must ensure that a permit or registration for a radioactive substances activity includes such conditions as it considers appropriate to apply limits for—
(a)the discharge of radioactive waste; and
(b)the introduction of radioactive material into the environment.
(2) SEPA must for the purposes of setting conditions required by sub-paragraph (1)—
(a)take into account the results of any optimisation of radiation protection;
(b)reflect good practice in the operation of similar facilities; and
(c)take into account, where appropriate, the results of a generic screening assessment based on internationally recognised scientific guidance to demonstrate that environmental criteria for long-term human health protection are met.