Before its adoption, the Administrative Board consults the European Commission and must receive a favourable opinion from the Board of Regulators on the regulatory outline.
After the adoption, the Administrative Board transmits the Work Programme to the European Parliament, the Council of the European Union and the Commission.
The Work Programme is then made public.
Have a look at the latest edition:
ACER Programming Document 2021-2023 (including ACER Work Programme 2021)
ACER Work Programme 2022 - Draft Outline (for consultation)
ACER Programming Document 2020-2022