1The practice of making an official declaration that something complies with regulatory standards or procedures without independent substantiating evidence.
- ‘the applicability of self-certification to aircraft safety tests’
- 1.1British The practice, for the purpose of claiming sick pay, by which an employee rather than a doctor formally declares that an absence from work was due to illness.
- ‘evidence of ill health must be authenticated; self-certification will not be accepted’
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