Section 620.5 - Conformity and substantial compliance(a)In general. A State law implementing the drug testing of applicants for unemployment compensation must conform with-and the law's administration must substantially comply with-the requirements of this part 620 for purposes of certification under 42 U.S.C. 502(a) , governing State eligibility to receive Federal grants for the administration of its UC program.(b)Resolving issues of conformity and substantial compliance. For the purposes of resolving issues of conformity and substantial compliance with the requirements of this part 620, the provisions of 20 CFR 601.5 apply.