11The employer must ensure that—

11 The employer must ensure that— (a) all documentation that relates to a claim against the employer under the Act is retained for at least 20 years after the day on which the final payment is made in respect of the claim; and (b) any documentation that relates to a claim against the employer under the Act in respect of an injury that occurred before the employer became a self‑insured employer or 1 of a group of self‑insured employers is provided to the Corporation after the material has been retained by the employer for 20 years as required by paragraph (a). 12 (1) The employer must, in carrying out its functions under the Act, take into account the racial, ethnic and linguistic diversity of the employer's workforce, the interests of both sexes, and the interests of those who may be physically, mentally or intellectually impaired, and must ensure that those of the employer's workers who are entitled to benefits under the Act are not disadvantaged because of their origins or background, their sex, or some physical, mental or intellectual impairment. (2) The employer should, as far as reasonably practicable, ensure that information provided for use in the workplace is in a language and form appropriate for those expected to make use of it. 13 This Schedule applies to self‑insured employers who are registered under section 129 of the Act. Schedule 4—Terms and conditions for insurance of employers (section 166 of Act) 1 In this Schedule— claim means a claim against an employer in respect of which the employer is insured by virtue of section 166 of the Act. 2 If the employer becomes aware of the occurrence of a work injury that is likely to give rise to a claim against the employer, the employer must, within 5 business days, forward to the Corporation written notice of the injury.