When you ship hazardous waste, your responsibility doesn't end at the loading dock — RCRA's cradle-to-grave rule keeps you liable until the waste reaches its destination and a signed manifest comes back. If that copy doesn't return, the clock is running on two separate deadlines that most facilities don't track at all. Here's how the 45-day and 60-day rules work under 40 CFR §262.42, and what changed in 2025.
The two-step timeline
The exact obligations depend on your generator status, and the two steps are often confused:
- Day 45 (LQGs only): If you haven't received a signed copy of the manifest from the designated facility, you must contact the transporter and/or the receiving facility to determine the status of your waste. This is an inquiry step, not a filing step.
- Day 60 (LQGs and SQGs): If the signed copy still hasn't arrived, you must file an Exception Report. SQGs have a single-step version of this — no intermediate 45-day inquiry, just the 60-day filing.
Both clocks begin the day the initial transporter accepted the waste — not the day you noticed the copy was missing.
What changed in 2025
As of December 1, 2025, Exception Reports must be filed through the e-Manifest system — the EPA no longer accepts mailed paper exception reports from either LQGs or SQGs. There's a corresponding benefit: retaining the signed electronic Exception Report in your e-Manifest account now satisfies the recordkeeping requirement under §262.40, so you don't need a separate paper file for it.
Why facilities miss this entirely
Three reasons, over and over:
- No one is watching the returns. Since TSDFs stopped mailing signed copies back, an unreturned manifest produces no envelope that never arrived — there's nothing physical to notice its absence.
- The clock is invisible. Without a system tracking each shipment's date, 45 and 60 days pass silently.
- The liability surprises people. The obligation applies even if the delay is entirely the transporter's or TSDF's fault. Cradle-to-grave means the generator carries the responsibility regardless.
How to never miss the window
Every outbound shipment needs both clocks started automatically on the acceptance date, a flag at day 45 prompting the LQG inquiry, and the exception report ready to file at day 60. enviro.lytics tracks both deadlines per shipment and drafts the exception report when the 60-day window hits, so the filing is a review-and-submit, not a scramble. You can also check any single shipment with our free manifest return-copy checker.
Bottom line
These deadlines are easy to honor and easy to forget — and forgetting them produces a steady drip of violations no one notices until an inspector reconciles your manifests against your exception reports. Track the returns, and the problem is solved.
This article is general information, not legal or regulatory advice. Requirements vary by state, and authorized state programs may impose additional obligations. Confirm the rules that apply to your facility with your state agency or a qualified professional.