Clark County School District
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department avatarEnvironmental Services

Science Chemical Inventory Year-End Instructions

CCSD uses the online Chemical Inventory Management and Electronic Reporting Application (CHIMERA) to maintain a site-specific hazardous chemical/substance inventory. Key chemical inventory tasks include the following:

  • Make sure that chemicals are properly labeled, barcoded, and stored.
  • Make sure that the inventory does not contain prohibited chemical products and that any restricted chemical products have written authorization per the procedure listed in the K-12 Science Safety Manual.
  • Update the list of chemical products onsite in CHIMERA and in the HAZCOM Binder.
  • Place a copy of all the corresponding safety data sheets in the HAZCOM Binder(s) for offline access by staff when school is not in session.

Refer to the CHIMERA manual for barcoding, reporting, safety and other inventory instructions.

Please submit requests to pick up all chemicals that are expired or that are no longer needed for next year’s curriculum. Once the items are picked up, remove them from the inventory in CHIMERA. Detailed instructions to submit a pickup request can be found on the Environmental Services web page at:

If you have questions, contact Environmental Services at (702) 799-0990 or email