29 CFR § 1602.14 - Preservation of records made or kept.
Any personnel or employment record made or kept by an employer (including but not necessarily limited to requests for reasonable accommodation, application forms submitted by applicants and other records having to do with hiring, promotion, demotion, transfer, lay-off or termination, rates of pay or other terms of compensation, and selection for training or apprenticeship) shall be preserved by the employer for a period of one year from the date of the making of the record or the personnel action involved, whichever occurs later. In the case of involuntary termination of an employee, the personnel records of the individual terminated shall be kept for a period of one year from the date of termination. Where a charge of discrimination has been filed, or an action brought by the Commission or the Attorney General, against an employer under title VII, the ADA, or GINA, the respondent employer shall preserve all personnel records relevant to the charge or action until final disposition of the charge or the action. The term “personnel records relevant to the charge,” for example, would include personnel or employment records relating to the aggrieved person and to all other employees holding positions similar to that held or sought by the aggrieved person and application forms or test papers completed by an unsuccessful applicant and by all other candidates for the same position as that for which the aggrieved person applied and was rejected. The date of final disposition of the charge or the action means the date of expiration of the statutory period within which the aggrieved person may bring an action in a U.S. District Court or, where an action is brought against an employer either by the aggrieved person, the Commission, or by the Attorney General, the date on which such litigation is terminated.