Guide
LDR notices explained
Last reviewed 29 October 2026
The land disposal restrictions, in 40 CFR part 268, require most hazardous wastes to meet a treatment standard before they can be disposed of on land. The LDR notice is how a generator tells the treatment or storage facility what it's receiving and what the waste still needs.
First, the determination
A generator determines whether its waste meets the applicable treatment standards, by testing it or from its knowledge of the waste (40 CFR 268.7(a)(1)). It may instead send the waste to a RCRA-permitted treatment facility, which then makes the determination.
When a notice is sent
If the waste doesn't meet its treatment standards, or the generator leaves the determination to the facility, the generator sends a one-time written notice to each treatment or storage facility receiving the waste, with the first shipment, and keeps a copy on file. A new notice is only needed when the waste or the receiving facility changes (40 CFR 268.7(a)(2)).
What it says
For a waste that doesn't yet meet its treatment standards, the notice gives, among other things:
- the EPA hazardous waste numbers and the manifest number of the first shipment;
- that the waste is subject to the LDRs, with its constituents of concern, including any underlying hazardous constituents in a characteristic waste;
- whether it's a wastewater or a nonwastewater; and
- waste analysis data, where it's available.
The Generator Paperwork Requirements Table in 40 CFR 268.7(a)(4) lists exactly what each kind of notice must include.
Lab packs
A generator using the alternative treatment standard for lab packs in 40 CFR 268.42(c) sends, with the first shipment, a notice and a certification signed by an authorized representative. The certification says the lab pack holds only wastes not excluded under Appendix IV to part 268, and that it will go to a combustion facility under that standard. Underlying hazardous constituents don't need to be determined for characteristic wastes in the lab pack, and a new notice is needed when the wastes in the lab pack or the receiving facility change (40 CFR 268.7(a)(9)).
Records
Generators keep copies of their notices, certifications and waste analysis data for at least three years from the date the waste was last sent for treatment, storage or disposal (40 CFR 268.7(a)(8)).
Where Pack-Star comes in
Pack-Star writes LDR notices from the job itself, alongside the manifest and the packing slips, so the three agree.
A note on this guide
This guide summarizes federal rules as they stood when it was last reviewed. States can add requirements of their own, and the regulations themselves are the authority. It's general information, not legal or regulatory advice: see our disclaimers.