Recycling and recovery
Waste minimization audit
Finding the streams worth eliminating rather than the ones worth disposing of more cheaply.
A waste minimization audit maps every hazardous waste stream at a site against its source, volume, cost and available alternatives. The output is a ranked list of changes, from segregation fixes that cost nothing to process changes that need capital.
Source: 40 CFR 262.27 on the waste minimization certificationWhat the audit covers
A working site walk, not a desk exercise:
- Every waste stream traced to the process that generates it
- Actual volumes and actual disposal cost per stream, not budget figures
- Segregation opportunities, which are usually the cheapest wins available
- Substitution options where a less hazardous input would do the same job
- Recovery potential assessed per stream against current market conditions
- Source reduction at the process, which is where the largest reductions live
Why the certification matters
Every generator signing a manifest certifies that it has a waste minimization program in place. Large quantity generators certify to a program that reduces volume and toxicity to the degree economically practicable. Small quantity generators certify to a good faith effort.
Most sites sign this without a document behind it. An audit produces that document, and it usually pays for itself in the first year through segregation changes alone, before any capital is spent.
Common questions
Is a waste minimization program required?
The certification on the manifest is required, and it asserts that a program exists. The regulation does not prescribe a form, but signing the certification without any underlying program is a false certification.
What typically comes out of an audit?
Segregation improvements almost always, because mixed streams cost more than segregated ones. Beyond that it varies: substitution, rinse water reduction, drag out control, and recovery routing are the common findings.
How long does it take?
A day or two on site for most facilities, plus analysis. The site walk with the people who actually run the processes is the part that produces the findings.
Related services
Not sure how this applies to your site?
Send a profile, an old manifest, or photographs of the drums. A technical professional will tell you where you stand.
This page summarizes federal requirements and is not legal advice. State programs can be more stringent than the federal baseline. Verify against current federal and state regulations before acting. Last reviewed September 2026.