The New Haven Health Department's Childhood Lead Poisoning Prevention Program investigates and resolves all cases of childhood lead poisoning reported to the department in a timely manner and distributes in conjunction with New Haven's Livable City Initiative federal funding to lead abate housing units occupied by income-qualified families.

New Haven has 10,630 pre-1940 rental housing units which is 32% of all renter occupied units. The total of all renter occupied housing units is 33,176 with a median of 1955 as the year of construction. In 2014 this department assisted 107 children whose blood lead levels were at or above 10 micrograms per deciliter. Over the past fifteen years this department has received a dramatic decline in the number of reported cases of childhood lead poisoning; from 420 children above 20 micrograms per deciliter reported in 1995 to 151 children reported as at or above 10 micrograms per deciliter in 2014.

Since 1995, over 1,267 units of lead-safe housing have been made available through the funding provided by the U.S. Department of Housing and Urban Development Office of Healthy Homes and Lead Hazard Control.