The LEPC may ask a facility owner or operator to submit an MSDS for a hazardous chemical present at the facility. The SERC, LEPC, or fire department having jurisdiction over a facility may ask a facility owner or operator to submit Tier II information. The owner or operator must provide the MSDS (unless the owner or operator has already submitted an MSDS to the LEPC for that hazardous chemical) or Tier II information within 30 days of receipt of such request.