Compliance · New Jersey only
New Jersey's water management deadline is December 12.
P.L. 2024, c.66 requires hospitals, care facilities, large residential buildings with central hot water, and any building with a cooling tower, evaporative condenser or other listed water device to have a written water management program that follows ASHRAE Standard 188. The program had to be written by September 12, 2026. By December 12, 2026 it has to be running, with a notice posted where occupants can see it.
Checked October 27, 2026. Both deadlines come from the statute itself; the Department of Health's rules have not been adopted. This page covers New Jersey only.
The dates
The law took effect when it was signed on September 12, 2024, and set its own clock: 24 months to develop a program, 27 months to implement it. The development date has passed. Neither date waits for an agency rule.
The written program implemented, and a written public notice posted on the premises, where occupants can reach it, saying the program is in place.
New JerseyThe program, its procedures and every test result kept on the premises for at least five years and produced to the Department of Health immediately on request.
New JerseyWho it reaches
The law lists facility types and device types. An office building with a cooling tower is covered for the tower and nothing else; a nursing home is covered for its whole water system.
New and repurposed buildings. A building that is newly built or repurposed has to confirm that its program controls the exposure risk before its systems are commissioned. The law does not name replacement equipment, but our reading is that the same order applies to a new cooling tower: update the program for the new device before it starts.
What the program contains
The law points to ASHRAE Standard 188, the 2018 edition or a later one, for what a program is. The standard and the Department of Health's template follow the same sequence. No credential is named for the person who writes it.
Sampling. Sampling is required for hospitals, the listed care facilities, outbreak buildings and anywhere the CDC recommends it. Everywhere else the law says a program may include it. Any sampling done under a program has to include Legionella pneumophila, and positive results are handled under ASHRAE 188 and CDC guidance.
What the State has published
The law asked the Department of Health for guidance within a year and for rules, written with the Department of Environmental Protection, within two. As of October 27, 2026 no rules have been proposed or adopted. What the Department has posted is useful, and it is not law.
What can still change. The rules may add a sampling cadence, a registry or a credential requirement. The law does not require any agency to review a program unless it is investigating a case of Legionnaires' disease, but the Department has already cited the statute in an August 2026 enforcement order against a licensed long-term care facility. Write the program to the standard now, and expect to amend it.
Penalties and cost
Failing to implement a program, or to show that it is being followed, can be pursued by the State in court under the Penalty Enforcement Law of 1999 or as a Department of Health administrative penalty, with 35 days to request a hearing. The Departments of Health, Environmental Protection and Community Affairs can also seek an injunction. The law funds nothing: the Legislature's own fiscal estimate put compliance at $2,000 to $10,000 or more per building, and that cost sits with the owner.
Where controls fit
A cooling-tower program is mostly operating discipline: water temperature, biocide residual, conductivity and blowdown, circulation during standby, and a record that each was checked on schedule.
One building, one device list
Send the building's address, what it is used for, and the water devices it has: towers, evaporative condensers, spas or pools, fountains, humidifiers, and how its hot water is made. We reply by email with which parts of the law apply, which devices the program must cover, whether sampling is required, and which of the program's checks the building's controls can already record. We are not a laboratory or a water-treatment vendor, and a program is not a legal opinion.
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Sources and dates
