13A The Trustee may by deed, subject to the restrictions set out below and to Inland Revenue consent, change any of the trusts, powers and provisions of the Pension Trust or Rules provided that the Trustee acting on professional advice determines that the change is trivial or is required by law or in order to retain Revenue Approval. Otherwise, the Trustee must first obtain the consent of the Designated Employers except that the Trustee may (having considered actuarial advice) amend Schedule 5 and Schedule 7 of the Rules of any Section which has adopted the rules of the Shared Cost Arrangement, without the Designated Employer’s consent. The Trustee shall notify each Designated Employer and each Pensions Committee of any change made under this paragraph. But any change under this Clause which has the effect of changing the Rules of the 1994 Pensioners “A” and “B” Sections requires the consent of the Secretary of State.