We will contract with one or more agencies in each of the States and the District of Columbia to provide services to individuals whose disabilities are based on a determination that drug addiction or alcoholism is a contributing factor material to the determination of disability (as described in § 416.935 ) and to submit information to us which we will use to make decisions about these individuals' benefits. These agencies will be known as referral and monitoring agencies. Their duties and responsibilities include (but are not limited to)-
20 C.F.R. §416.941