The United States banned lead paint for residential use in 1978. The Consumer Product Safety Commission issued the final rule in 1977, and it took effect on February 27, 1978, applying to all consumer paints manufactured from that date forward. The ban lowered the allowable lead content in paint from 0.5 percent to 0.06 percent. That limit was tightened again in 2009 to 0.009 percent, or 90 parts per million.
What the 1978 Ban Actually Covers
The federal ban applies to paint sold for homes, toys, children’s articles, and household furniture. It does not cover every type of paint. Several categories of lead-containing coatings remain legal in the U.S., including industrial and commercial building maintenance coatings, agricultural and industrial equipment finishes, traffic and safety marking paints, and graphic art coatings used on billboards and road signs. Artists’ paints and related materials are also exempt, as are factory-applied coatings on metal furniture (excluding children’s furniture).
This means lead paint didn’t disappear from the world in 1978. It disappeared from store shelves for home use. Bridges, factories, ships, and heavy equipment may still carry lead-based coatings applied legally after the ban.
When Other Countries Stopped
Canada restricted lead in interior paint in 1976 but continued to allow high levels of lead in exterior consumer paint as long as it carried a warning label. That gap wasn’t closed until 2005, when new regulations reduced the lead limit to background levels for both interior and exterior paints.
The United Kingdom banned the sale and commercial use of lead carbonate and lead sulphate paints in February 1992. The UK rules include a narrow exception: lead paint can still be supplied for restoring or maintaining historic buildings classified as Grade I or Grade II* listed, or scheduled monuments, where the original texture or finish requires it. Suppliers must notify authorities at least three weeks before providing the paint.
Why Lead Paint Is Still a Problem Today
A ban on new production doesn’t remove what’s already on the walls. Any home built before 1978 in the U.S. could have layers of lead paint underneath newer coats. The paint becomes dangerous when it deteriorates, peels, chips, or crumbles from friction on surfaces like windowsills, steps, and doors. Renovation work that sands, scrapes, or demolishes painted surfaces can also release lead dust into the air and surrounding soil.
Lead enters the body through two main routes. The most common, especially in children, is hand-to-mouth contact with contaminated dust or paint chips. Between 20 and 70 percent of ingested lead gets absorbed into the bloodstream. Fine lead particles can also be inhaled directly into the lungs during renovation or demolition. The CDC uses a blood lead reference value of 3.5 micrograms per deciliter to flag children whose levels are higher than most, triggering follow-up and intervention.
Rules for Renovating Older Homes
If your home was built before 1978, federal law requires specific precautions during renovation. The EPA’s Renovation, Repair, and Painting (RRP) Rule mandates that contractors working on pre-1978 homes be certified and trained in lead-safe work practices. This applies to any project that disturbs painted surfaces in homes, child care facilities, and schools built before the ban. Hiring an uncertified contractor for this work is a violation of federal law.
How to Test for Lead Paint
Two main testing methods exist, and they differ significantly in reliability. Professional inspectors use X-ray fluorescence (XRF) devices, which can read lead content through multiple layers of paint without disturbing the surface. A reading above 1 milligram per square centimeter classifies the surface as lead-painted.
DIY chemical test kits are cheaper and widely available at hardware stores. They work by changing color when lead is present at concentrations of at least 0.5 percent by weight. However, the EPA does not recommend these kits because they can produce false readings, both positive and negative, and they cannot tell you how much lead is actually in the paint. If you need a definitive answer, particularly before a renovation or when a child lives in the home, professional XRF testing or lab analysis of paint chip samples is far more reliable.
The 2009 Standard Tightening
The Consumer Product Safety Improvement Act of 2008 mandated a stricter lead limit that took effect on August 14, 2009. The allowable lead concentration in consumer paint dropped from 0.06 percent (600 parts per million) to 0.009 percent (90 parts per million). This change reflected a growing understanding that even trace amounts of lead pose health risks, particularly to young children whose developing brains are most vulnerable. The lower threshold applies to all consumer paints, toys, and children’s products sold in the United States.