A judgment for child support or family support may be enforced by assignment or execution against a debtor’s right to those existing periodic payments being made of benefits from an employee pension plan. The amount withheld, levied by garnishment and not an earnings withholding order for support, shall not exceed the amount permitted to be withheld on an earnings withholding order for support. (CCP 701.010, 704.115) CCP 697.710 limits the duration of an execution lien to two years after the issuance of the writ of execution. FAM 5103 extends the levy lien period indefinitely until the full amount to satisfy is received by the levying officer.