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Transitional and saving arrangements for the trade union measures of the Employment Rights Act 2025 that came into force on 18 February 2026: for employers, unions and workers.
Practical guidance to trade unions and employers to promote the improvement of industrial relations and good practice in the conduct of trade union industrial action ballots.
Guidance on picketing for employers, workers or members of the public who may be affected by a picket or any associated activities.
Complaint form and guidance on who can complain to the Certification Officer (CO), what you can complain about and how to complain.
Certification Officer (CO) guidance on eligibility, the application process and application form CO1.
Annual return form AR21, ballots and industrial action spreadsheet, statement to members, notice to members and membership audit certificate (MAC).
Guidance on how a trade union political fund must be operated.
Guidance on the statutory procedure for the recognition and derecognition of trade unions for the purpose of collective bargaining.
Certification Officer (CO) guidance for trade unions that want to prove that they are independent from employers.
Guidance for applicants and unions attending a hearing with the Certification Officer (CO).
A guide for trade unions and employers’ associations seeking to establish a political fund
How to let the Certification Officer (CO) know about potential fraud or financial irregularities.
Blank electronic form and Ballots and Industrial Action Spreadsheet for Trade Unions completion
Guidance on the Employment Relations Act 1999 (Blacklisting) Regulations 2010.
Employment law gives employees basic protections against being penalised for being, or not being, members of a trade union.
Types of financial irregularities the Certification Officer (CO) can investigate and how to ask the CO to conduct an investigation.
Describes the statutory requirements which apply to trade union elections.
Guidance on the citizen's right to prevent disruption because of industrial action.
Transfer of engagements and amalgamations: guidance from the Certification Officer (CO).
Rules for Cleaners Union.
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