Under New Jersey's mandatory life policy provisions, what is the minimum grace period an insurer must provide for payment of a premium after the due date?

Why this is the answer

N.J.S.A. 17B:25-3 requires every NJ life insurance policy to include a 31-day grace period after the premium due date during which coverage stays in force. If the insured dies in the grace period, the unpaid premium may be deducted from proceeds.