Use the designator this state requires

Error²Federal courts21st and 22nd editions

Table T1.3 fixes one designator for each state's administrative code — a section symbol, “r.”, or none — and each state's citations follow its own skeleton, not another state's.¹

1. 1B14 Administrative and Executive Materials. Tables: T1.3 States and the District of Columbia.
2. 2An error: the rule in note 1 allows one form, and this is not it.