On or after presenting a further complaint under section 184 the trade union may present to the Central Arbitration Committee a claim, in writing, in respect of one or more descriptions of employees (but not workers who are not employees) specified in the claim that their contracts should include the terms and conditions specified in the claim.
The right to present a claim expires if the employer discloses or, as the case may be, confirms in writing, to representatives of the trade union the information specified in the declaration under section 183(5) or 184(4); and a claim presented shall be treated as withdrawn if the employer does so before the Committee make an award on the claim.
If the Committee find, or have found, the further complaint wholly or partly well-founded, they may, after hearing the parties, make an award that in respect of any description of employees specified in the claim the employer shall, from a specified date, observe either—
The date specified may be earlier than that on which the award is made but not earlier than the date specified in accordance with section 183(5)(b) in the declaration made by the Committee on the original complaint.
An award shall be made only in respect of a description of employees, and shall comprise only terms and conditions relating to matters in respect of which the trade union making the claim is recognised by the employer.
Terms and conditions which by an award under this section an employer is required to observe in respect of an employee have effect as part of the employee's contract of employment as from the date specified in the award, except in so far as they are superseded or varied—
Where—
that contract shall have effect in accordance with that award, order or other instrument or in accordance with the award under this section, whichever is the more favourable, in respect of any terms and conditions of that contract, to the employee.
No award may be made under this section in respect of terms and conditions of employment which are fixed by virtue of any enactment.