Regulations made under this Part of this Act may provide that any provision of this Part, except this section ..., shall have effect with such modifications as may be prescribed for the purpose of enabling Her Majesty's Government in the United Kingdom—
to give effect to any EU obligation or exercise any related right; or
to give effect to any obligation or exercise any related right under any international agreement to which the United Kingdom is for the time being a party,
and "related right", in relation to an obligation, includes any derogation or other right to make more onerous provisions available in respect of that obligation.