How should a remodeler show lead-safe certification and a license number?
Show both the way the rules describe, because homeowners look them up. If your firm is EPA lead-safe certified, the logo can go on your site, with your firm's certification number legible. Your license or registration number goes where your state requires it; in Maryland, every home improvement ad must carry it.
EPA's logo guidelines allow certified firms to use the Lead-Safe Certified Firm logo on "websites, proposals, bills, signs, uniforms, vehicles" and other materials, reproduced so that its components are legible, "including your firm's certification number." Firms that aren't certified may not use it, and neither may your subcontractors unless they're certified themselves. The logo can't be used in a way that implies EPA endorses your company.
Maryland's Home Improvement Commission says each home improvement advertisement "must contain the name and license number of the contractor," and state law sets one of two forms for showing it, such as "MHIC No." followed by the number. Rules differ by state, so we place your number where your state's rules call for it, and you confirm them before launch.
Sources: US Environmental Protection Agency, "How and where can I use the Lead-Safe Certified Firm Logo?", last updated January 21, 2026; Maryland Department of Labor, Home Improvement Commission advertising requirements; Maryland Code, Business Regulation section 8-615. All read November 1, 2026. This isn't legal advice.
Which states license remodeling, and how buyers check a record, are on our remodeling marketing page and in our contractor license lookup entry.