MCO 4450.12A — Storage And Handling Of Hazardous Materials

MCO 4450.12A governs uniform procedures for the receipt, storage, use, inspection, transportation, and handling of hazardous materials.

Search MCO 4450.12A

  • Publication number: MCO 4450.12A
  • Title: STORAGE AND HANDLING OF HAZARDOUS MATERIALS
  • Date: 4 Mar 2020
  • Proponent: 04000 Logistics
  • Status: Current

View MCO 4450.12A on armypubs.army.mil


The publication addresses hazard communication, installation receipt processing, quality control, recoupement, packaging, shipment planning, environmental protection, safety and health, training, and ammunition and explosives. It requires hazardous materials to be managed according to applicable laws and DoD policy, with Safety Data Sheet information entered before first delivery and hazardous items identified by packaging labels and markings.

Applies to: This regulation applies to all DoD/DLA components that receive, store, issue, use, maintain, recondition, and perform associated services with or containing hazardous materials or hazardous waste.

Topics covered

  • Hazard communication
  • Hazardous material receipt processing
  • Packaging and shipment of hazardous materials
  • Spill prevention management
  • Chemical protective clothing
  • Hazardous materials training
  • Ammunition and explosives

Questions and answers

When must Safety Data Sheet information be entered into HMIRS?

The Safety Data Sheet (SDS) or product information will be acquired or developed and entered into the Hazardous Materials Information Resource System (HMIRS)/enterprise data repository as required by Enclosure 1, (ac) before the first delivery arrives at its first destination. (paragraph 5)

How must hazardous items be identified?

All hazardous items will be recognizable by their packaging labels and markings for the purpose of conveying product hazards in accordance with 29 CFR 1910.1200 and discrimination from nonhazardous items. (paragraph 5)

What practices are required when handling hazardous materials?

Avoid handling incompatible materials at the same time. (paragraph 9)

What is required when a hazardous materials spill occurs?

Report spills of any size when they occur. (paragraph 4)

How often must stock locator systems be validated?

Stock locator systems will be validated at least annually or more often if warranted to ensure accuracy. (paragraph 6)

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