Medical Waste Regulations in California (2026)
Generator registration, storage limits, approved treatment, transport rules, and penalties under California Dept of Public Health, Medical Waste Management Program; county Local Enforcement Agencies administer it in most counties, with the primary statute behind every line.
California medical waste rules at a glance
| Governing agency | California Dept of Public Health, Medical Waste Management Program; county Local Enforcement Agencies administer it in most counties |
|---|---|
| Primary statute / rule |
|
| Generator registration | Yes. Medical waste generators must register with their enforcement agency (CDPH or the county Local Enforcement Agency). A large quantity generator produces 200 or more pounds of medical waste in any month of a 12-month period (HSC 117680); a small quantity generator produces less than 200 pounds per month (HSC 117760). Any small quantity generator that treats waste on site, and all large quantity generators, must also file a Medical Waste Management Plan. [source] |
| On-site storage time limit | Biohazardous waste may not be stored above 0 degrees Centigrade (32 F) for more than 7 days without prior written approval of the enforcement agency if the generator produces 20 or more pounds per month. Generators of less than 20 pounds per month may store above freezing for up to 30 days, and any generator may store waste at or below 0 degrees Centigrade (32 F) for up to 90 days without prior written approval (HSC 118280). [source] |
| Approved treatment methods |
|
| Transport / manifest rules | Untreated medical waste must be hauled by a registered hazardous waste hauler, the United States Postal Service, or a person granted an exception under HSC 117946 (HSC 118025). The transporter must keep a completed tracking document that follows the waste from the generator to final treatment, listing the transporter name and registration number, waste type and quantity, generator and receiving-facility information, and collection and receipt dates, and must produce it on demand (HSC 118040). [source] |
| On-site treatment allowed? | Yes, with approval. A generator may treat medical waste on site using an approved method such as steam sterilization or a department-approved alternative technology. Any small quantity generator that treats on site, and all large quantity generators, must file a Medical Waste Management Plan, and alternative treatment technologies require department approval (HSC 118215; an alternative-technology evaluation fee applies under HSC 118245). [source] |
| Penalty range | Civil penalty up to $10,000 per violation, and for continuing violations up to $10,000 for each day the violation continues (HSC 118345). Criminal penalties under HSC 118340 range from an infraction with a fine up to $1,000 for a small quantity generator first offense, to misdemeanor fines and up to one year in county jail, up to fines of $5,000 to $25,000 plus imprisonment for repeat or knowing violations. [source] |
What is unique about California
California ties the on-site storage clock to both weight and temperature, not a single flat limit. Under HSC 118280, a generator of 20 or more pounds of biohazardous waste per month may hold it no more than 7 days if stored above 0 degrees Centigrade (32 F), but freezing the waste at or below 0 degrees Centigrade extends the allowable storage to 90 days without enforcement-agency approval. Compliance staff must track the storage temperature, not just the calendar.
Frequently asked questions
How long can I store medical waste on site in California before it must be hauled away?
It depends on weight and temperature. If you generate 20 or more pounds of biohazardous waste per month, you may store it above 0 degrees Centigrade (32 F) for no more than 7 days without prior written enforcement-agency approval. Generators of less than 20 pounds per month get 30 days above freezing. Any generator may store waste up to 90 days if it is kept at or below 0 degrees Centigrade (HSC 118280).
What is the difference between a small and large quantity generator in California?
A large quantity generator produces 200 or more pounds of medical waste in any month of a 12-month period (HSC 117680). A small quantity generator produces less than 200 pounds per month (HSC 117760). All large quantity generators, and any small quantity generator that treats waste on site, must file a Medical Waste Management Plan with their enforcement agency.
Do I have to register my practice with the state or my county?
You register with your enforcement agency. CDPH acts as the enforcement agency in some counties, while many counties run their own Local Enforcement Agency. Generators in CDPH counties complete the CDPH Generator Registration Application; generators elsewhere register with their county LEA. See the CDPH Generators page for LEA contacts.
Can a hospital or clinic treat medical waste on site in California?
Yes, with approval. On-site treatment is allowed using an approved method such as steam sterilization or a department-approved alternative technology under HSC 118215. Any small quantity generator that treats on site, and all large quantity generators, must file a Medical Waste Management Plan, and alternative treatment technologies require department approval (HSC 118215; HSC 118245).
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