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RCRA waste code finder

Maryland hazardous waste codes Federal D, F, K, P & U codes for waste made in Maryland.

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  • Based on 40 CFR Part 261 and EPA guidance
  • Nothing is stored

Find a federal hazardous waste code

Pick a waste or type one, and its RCRA codes show here.

Federal RCRA codes for ignitable, corrosive, reactive & toxic waste made in Maryland, plus listed wastes.

What changes in Maryland?

Maryland’s 2025 additional-code sheet lists 15 entries. They are K991–K999, MD01–MD03, M001, MT01 and MX01. EPA’s inventory lists 18, adding F014, F015 and U202, which is federally delisted. Whether those 3 EPA-only entries apply is unresolved, so get MDE guidance before using them.

Examples
K991, MD01, MD02, MD03, M001, MT01, MX01

How do I choose Maryland codes?

Use MDE’s sheet for the 15 confirmed entries. Get MDE guidance before assigning F014, F015 or U202 as state additions.

What do I record in Maryland?

Item 13 of a required manifest takes the federal codes and any state codes that don't repeat them, such as K991 when it applies.

Sources