Dot gov

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

HTTPS

Secure .gov websites use HTTPS
A lock () or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Lead Hazard Investigator

A lead hazard investigator certification is for a person who does lead hazard screenings, lead risk assessments, lead-safe investigations, and lead clearance. They also offer ways to reduce specific lead hazards. They don’t use X-ray fluorescence devices or do lead inspections.

Type

Initial, Renewal

Description

In Wisconsin, a person must be certified to work with lead-based paint. A lead hazard investigator certification is for a person who does lead hazard screenings, lead risk assessments, lead-safe investigations, and lead clearance. They also offer ways to reduce specific lead hazards. They don’t use X-ray fluorescence devices or do lead inspections.

Lead hazard investigators must be associated with a certified lead company when doing lead work

Duration

Two years. A one-day refresher training is required every two years to renew.

Fees

$325 for two years. State and local government workers don’t have to pay the fee.

Prerequisites

You must be 18 years of age or older and meet one of the following:

  • Have a bachelor’s degree and one year of related experience.
  • Have an associate degree and two years of related experience.
  • Have a high school diploma or equivalent and three years of related experience.
  • Have professional certification as an industrial hygienist, professional engineer, or registered architect, or in a related professional engineering, health, or environmental field, such as safety professional or environmental scientist.
  • Be a registered nurse or registered sanitarian and be employed by a health department that provides oversight of the individual’s activities.

You also must complete the one-day initial lead sampling course followed by the two-day initial lead hazard investigation course.

See Wis. Admin Code ch. DHS 163, subch. II, Certification of Persons to Perform Lead-Safe Renovation, Lead Hazard Reduction, or Lead Investigation Activities.

You must pass a state certification exam within six months after completing the first training course.

Program information

The Lead Certification Program makes sure lead professionals are trained, certified and work safely.

Last revised January 23, 2024