The bill implements a statewide fee for New Jersey residents who don't obtain health insurance through their job, Medicaid or another source, NJ.com reports.
The plan is similar to a provision of the Affordable Care Act that was repealed by the GOP tax law last year.
New Jersey Democrats sent the bill to Murphy's office last month, making the state the first to reinstate the individual mandate after the Republican repeal of the federal provision.
New Jersey lawmakers say the state mandate is necessary to stabilize health insurance markets that were adversely affected by the mandate's repeal.
