The Earlham College Chemical Hygiene Plan (CHP) meets the requirements of the "Laboratory Standard" of the Occupational Health and Safety Act, 29 CFR 1910, Subpart Z. The "Laboratory Standard" is known as 29CFR1910.1495 or Occupational Exposures to Hazardous Chemicals in Laboratories. It requires employers who maintain small laboratories with many hazardous chemicals in small quantities to appoint a Chemical Hygiene Officer and to prepare a Chemical Hygiene Plan. It also requires employees to comply with their employer's CHP. Where the Laboratory Standard applies, it supersedes the Hazard Communication Standard (HCS), 29 CFR 1910.1200, sometimes known as the "Right to Know Act" or "The Haz-Com Act". The effective implementation date of the Laboratory Standard was January 31, 1991.
The Hazardous Communication Standard applies to areas of the college which use small or large amounts of only a few selected chemicals.
OSHA defines a hazardous chemical as a substance for which there is statistically significant evidence, based on a least one scientific study, showing acute or chronic harm as a result of exposure to that chemical.