https://www.osha.gov/dte/library/pit/pit_q-a.html OSHA forklift operators https://www.osha.gov/dte/library/pit/pit_q-a.html osha.gov osha.gov https://www.osha.gov/dte/library/pit/pit_q-a.html employer’s responsibility https://www.osha.gov/dte/library/pit/pit_q-a.html https://www.osha.gov/dte/library/pit/pit_q-a.html OSHA employer’s responsibility