This notebook provides guidance on the Monitoring and Technical Assistance Review System (MTARS). The manual is intended for use by Administration on Developmental Disabilities (ADD) staff who manage MTARS and by MTARS reviewers who conduct site visit activities. The notebook is also designed to help Councils, Protection and Advocacy Systems, and University Centers for Excellence in Developmental Disabilities prepare for and participate in MTARS activities. The notebook describes procedures for each stage of the MTARS process and is organized into seven sections: (1) Overview of the Developmental Disabilities Assistance and Bill of Rights Act of 2000 (DD Act) and ADD; (2) Monitoring and Technical Assistance Review System; (3) MTARS Team; (4) Planning Activities; (5) Pre-Site Visit Activities; (6) MTARS Site Visit; and (7) Post-Site Visit Activities. Tables, checklists, glossary and additional information are appended. (Contains 31 tables.)