Nomination rights allow employees to appoint family nominees for provident fund balances, modifiable by written notice. Nomination grants specified persons the right to receive an employee's provident fund balance on death and must be made in Form No. 40A; multiple nominees must have specified shares covering the whole amount. Nominations made while the employee has a family must favour family members and are invalid if made in favour of non-family; nominations made when the employee has no family are valid until the employee acquires a family. Nominations may be modified by written notice in Form No. 40B, take effect when received by trustees, and a predeceased nominee's interest reverts to the employee.