Expands definition of child under PFRS and SPRS.

This bill expands the definition of "child" under New Jersey's Police and Firemen's Retirement System (PFRS) and State Police Retirement System (SPRS). It adds two specific scenarios: children aged 18+ enrolled in at least 12 credit hours per semester at a college or university, and children of any age with a documented disability preventing substantial gainful work for 12+ months. These changes directly affect the children of retired or deceased police officers and firefighters who previously might not have qualified for benefits under the old definition. The bill modifies eligibility criteria for retirement benefits but does not change benefit amounts or other system mechanics.