129.Section 231A of the 1992 Act requires unions to inform employers about the result of an industrial action ballot which involves their employees. In cases where a union ballots its members employed by different employers, the union must supply the information to each of the employers concerned. Under existing law, a failure to inform some, but not all, of the employers can make it unlawful for the union to induce any of its balloted members to take action. Paragraph 2(3) of Schedule 3 makes it lawful in these circumstances for a union to call on its members to take action where they are employed by an employer who was informed of the result. It will remain unlawful, however, for a union to induce its members to take action if their employer was not informed of the result.
Commentary on Sections Trade unions Informing employers of the ballot result