What is a Related Service Authorization (RSA)?. Your child has been recommended for the Related Service listed on the enclosed form.Child Care Program and Provider Enrollment Application. Service Contract Providers must register with the Department of Financial Services to do business in New York. This application is to be used to apply for approval of agencies as early intervention evaluators, service providers and service coordinators. Plaintiff must submit his or her detailed affidavit of facts together with proof of service of the legal papers upon defendant(s). In General Where to Sue Starting the Case Electronic Filing Notifying the Defendant Preparing for Court. Welcome to the Web site ("Site") of the Wildlife Conservation Society ("WCS"). WCS is committed to protecting your privacy when you use our Site. Intheblanks form authorizing a filing agent to efile documents on behalf of an individual attorney.