20 CFR 702.111: Employer's records.

Every employer shall maintain adequate records of injury sustained by employees while in his employ, and which shall also contain information of disease, other impairments or disabilities, or death relating to said injury. Such records shall be available for inspection by the OWCP or by any State authority. Records required by this section shall be retained by the employer for three years following the date of injury; this applies to records for lost-time and no-lost-time injuries.