WAC 296-800-18005. Preserve exposure records for at least thirty years

You must keep safety data sheets (SDSs) and analysis using SDSs for at least thirty years, including current, former, and future employers receiving transferred records. Preserve SDSs in any form, as long as the information is not altered and is retrievable. You may keep alternative records instead of SDSs concerning the identity of a substance. The alternative record must also be kept for thirty years and contain the following information: (1) Some record of the identity (chemical name, if known) of a substance or agent. (2) Where the substance or agent was used. (3) When the substance or agent was used.