Unless exempt from the basic training requirements as defined in WAC 388-71-0839 (1) through (7), a parent, including when related by marriage or domestic partnership, who is the individual provider for their adult child receiving services through the DSHS developmental disabilities administration must complete the 12-hour parent provider training, as described in WAC 388-71-0895, within 120 days from the begin date of the authorization to provide department paid, in-home services.