The powers at section 256C of, and Schedule A3 to, the 1992 Act, inserted by section 17(1) and (2) of the 2016 Act, apply only where the failure of the trade union to comply with any of the relevant obligations listed in paragraph 1(1)(a) to (g) of Schedule A3 to the 1992 Act, which is the subject of an investigation of the Certification Officer, occurs on or after 1st April 2022.