ASSEMBLY ENVIRONMENT AND SOLID WASTE COMMITTEE
STATEMENT TO
ASSEMBLY, No. 3966
with committee amendments
STATE OF NEW JERSEY
DATED: MARCH 16, 2026
The Assembly Environment and Solid Waste Committee reports favorably and with committee amendments Assembly Bill No. 3966.
As amended, this bill requires the Department of Environmental Protection (department) to conduct an evaluation of the short and long term effects of water use by large-scale data centers.
Under the provisions of this bill, the study is to consider the short-term effects of water use by large-scale data centers, measured over the preceding three years; the long-term effects of water use by large-scale data centers, measured over the preceding seven years; the anticipated effects of water use by large-scale data centers which may be constructed in the future, as distinct from existing large-scale data centers; any efforts undertaken by the department or by large-scale data center operators to reduce the use of water by large-scale data centers; how the use of water by large-scale data centers has impacted overall State water use and costs; how the use of water by large-scale data centers has affected the operational efficiency, cooling requirements, or uptime of the large-scale data center due to water constraints; the direct or indirect costs associated with the use of water by large-scale data centers, including impacts on public water systems, ratepayers, or infrastructure upgrades required to meet demand; an analysis of any feasible water use reduction strategies which could be implemented by any large-scale data centers operated in the State; and any other information which the department determines to be necessary to produce a comprehensive study.
The bill provides that, in conducting the evaluation required under the bill, the department may: (1) require the owner or operator of a large-scale data center, public water system, wastewater utility, sewerage authority, or other relevant entity to submit any information that the department deems necessary; (2) rely on permit records, utility records, estimates, and any other reasonably available information, if historical data is unavailable, incomplete, or inconsistent; and (3) consult with the Board of Public Utilities (board) and utilize any relevant data reported to the board pursuant to State law.
Within fifteen months of the bill’s effective date, the department would be required to submit a report on the findings of the study to the Governor and the Legislature. The Commissioner of Environmental Protection is authorized to submit recommendations for legislation to improve State laws regarding the use of water by large-scale data centers.
This bill was prefiled for introduction in the 2026-2027 session pending technical review. As reported, the bill includes the changes required by technical review, which has been performed.
COMMITTEE AMENDMENTS:
The committee amended the bill to:
(1) remove the definition for the term “data center” and add a definition for the term “large-scale data center”; and
(2) provide that in conducting the evaluation required under the bill, the department may: require the owner or operator of a large-scale data center, public water system, wastewater utility, sewerage authority, or other relevant entity to submit such information as the department deems necessary; rely on permit records, utility records, estimates, and any other reasonably available information, if historical data is unavailable, incomplete, or inconsistent; and consult with the board and utilize any relevant data reported to the board pursuant to State law.