Employers with workers in several states may elect to report them to a single state. Multistate employers who elect to report to a single state must: report all new hires, rehires and returns to work; submit electronically twice a month, a file meeting the specifications of that state; and notify Department of Health and Human Services;Multistate Employer Registration
Office of Child Support Enforcement;
Department of Health and Human Services
P.O. Box 509
Randallstown, MD 211330509