WAC 388-14A-4120. DCS uses the National Medical Support Notice to enforce an obligation to provide health insurance coverage

(1) The division of child support (DCS) uses a notice of enrollment called the National Medical Support Notice (NMSN) to enforce an obligated parent's obligation to provide health insurance coverage under chapter 26.18 RCW. (2) DCS sends the NMSN to the obligated parent's employer in one of the following ways: (a) In the same manner as a summons in a civil action, (b) By certified mail, return receipt requested, (c) By regular mail, or (d) By electronic means as provided in WAC 388-14A-4040 (1)(d). (3) DCS sends the NMSN without notice to the obligated parent, who could be either the noncustodial parent (NCP) or the custodial parent (CP) when: (a) A court or administrative order requires the obligated parent to provide coverage for a dependent child; (b) The obligated parent fails to provide health insurance (either by not covering the child or by letting the coverage lapse) or fails to provide proof of coverage; (c) The requirements of RCW 26.23.050 are met; and (d) DCS has reason to believe that coverage is available through the obligated parent's employer or union. (4) If sending the NMSN does not result in coverage for the child, DCS may seek to enforce the obligated parent's medical support obligation by other means, as provided in RCW 26.18.170 and WAC 388-14A-4100 .