The division of child support (DCS) may prorate a monthly support obligation under the following circumstances:

(1) An order is entered terminating the noncustodial parent's (NCP's) support obligation and the order specifies that the NCP's obligation should be prorated;

(2) A superior or tribal court order is entered requiring that support for a given month be prorated; or

(3) When a conference board convened under WAC 388-14A-6400 decides that support for a given month should be prorated.