Guide · EPA & state Lead-Safe (RRP) firm certification
Field guide

Prohibited Work Practices Under the RRP Rule (and What to Use Instead)

Updated August 2026 · Reviewed by Korey Paar, Fast Filing Group LLC

The RRP Rule prohibits three categories of method outright on regulated renovations: open-flame burning or torching of painted surfaces, using a heat gun at temperatures at or above 1100 degrees Fahrenheit, and machine sanding, grinding, planing, needle gunning, or abrasive blasting without HEPA exhaust control. These are not discouraged practices or judgment calls. They are banned regardless of how careful the operator is, because each one aerosolizes lead in quantities that containment cannot reliably control.

The common thread is dust and fume generation. Everything else in the rule is about containing lead where it lands; these methods are prohibited because they put lead somewhere containment cannot follow, including into the lungs of the person holding the tool.

The three prohibited categories

Under 40 CFR 745.85, these methods may not be used on regulated renovations covered by the rule.

There is no compliant way to perform them - no containment configuration, no respirator, no experience level that makes them permissible on a covered job.

  • Open-flame burning or torching of painted surfaces. The most dangerous of the three, because it volatilizes lead into fume rather than dust.
  • Operating a heat gun at 1100 degrees Fahrenheit or above. Heat guns are not banned outright; operating them at or above that threshold is.
  • Machine sanding, grinding, power planing, needle gunning, or abrasive blasting without HEPA exhaust control attached to the tool. The tool is not the problem; the uncontrolled dust is.

What to use instead

Every prohibited method has a compliant substitute, and in most cases the substitute is slower rather than more expensive. That time difference is where the temptation lives.

The economics are not close once you account for the downside. A single enforcement action costs far more than the labor hours saved by torching a window frame, and that is before considering the exposure to your own crew.

  • Instead of torching: chemical strippers appropriate to the substrate, or wet scraping with continuous misting.
  • Instead of a high-heat gun: keep the gun below the 1100 degree threshold, with wet methods and careful debris capture.
  • Instead of uncontrolled power sanding: the same tools fitted with HEPA exhaust attachments, or hand sanding with wet methods.
  • Instead of dry scraping generally: wet scraping, which is the default technique the rule's work practices are built around.

Why the certified renovator has to be the one deciding

The prohibited-practice list is exactly the sort of knowledge the accredited renovator course exists to install. A crew member who has not taken the training has no reliable way to know that a heat gun is fine at one setting and prohibited at another, or that a sander becomes compliant with an attachment.

This is the practical argument for why the certified renovator credential and the firm certification are two different things and why you need both. The firm credential makes it legal for your company to take the work. The renovator credential is the person on site who knows that torching the window frame ends the job and possibly the company.

Enforcement reality

Prohibited-practice violations are among the easier ones for an inspector to establish, because the methods leave evidence. Scorch marks, fume staining, and the dust distribution pattern from uncontrolled sanding all persist after the crew leaves.

Neighbors and occupants also report these methods, and open-flame work on a residential exterior is visible from the street. See our guide to RRP rule fines and penalties for what enforcement actually costs.

The documentation angle

Because prohibited practices are about what you did not do, the record that protects you is the record of what you did instead. A job file showing wet scraping, HEPA-equipped tools, and a documented cleaning verification is affirmative evidence of compliant method selection.

Photograph the tools and setup as used. It takes seconds and produces the only contemporaneous evidence that will exist. Our guide to RRP recordkeeping requirements covers what else belongs in that file and how long it has to survive.

Frequently asked questions

Are heat guns banned under the RRP Rule?

Not outright. Operating a heat gun at or above 1100 degrees Fahrenheit is prohibited. Below that threshold, a heat gun can be used as part of a compliant approach alongside wet methods and proper debris capture.

Can I use a power sander on a regulated job?

Only with HEPA exhaust control attached to the tool. Machine sanding, grinding, planing, needle gunning, and abrasive blasting without that control are prohibited, because the dust they generate cannot be reliably contained.

Do these prohibitions apply if I am only working on a small area?

The prohibited-practice list applies to regulated renovations covered by the rule. If a job falls under the rule at all, these methods are off the table regardless of the size of the area. Whether a particular job is covered is a separate question - see our guide on RRP rule exemptions.

What if the homeowner asks me to torch the paint off?

A homeowner cannot authorize a certified firm to use a prohibited method, and their request is not a defense in an enforcement action. The obligation attaches to your firm's credential, not to the customer's preferences.

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