(1) The Board may review a decision made under section 21 at any time on obtaining significant new scientific information indicating that the genetically modified organism or the approved activity may adversely affect human health, ·plant health, animal health or the environment.

(2) A regulatory agency or an applicant may request the Board to review the Board's decision under section 21 with respect to an activity conducted by the applicant on the ground

(a) that a change in the circumstances has occurred that may have a material effect on the outcome of the risk assessment on which the decision was based; or

(b) that additional scientific or technical information is available which may have a material effect on the decision including the conditions, limitations or requirements imposed under an approval.

(3) Where on a review the Board is satisfied that a change is warranted, the Board shall issue a revised approval.

(4) The Board shall take a decision on a review within one hundred and fifty days from the date of notification of the review and shall set out the reasons for the decision.

(5) Where the Board has knowledge that an activity possesses potential risk to the environment, the Board shall take immediate action to put the necessary measures in place.

(6) The Board shall give special consideration for review requests from a regulatory agency.