A full review, at least once during each three-year period, assesses grantee compliance with all program areas.

The Classroom Assessment Scoring System (CLASS^®), an observation instrument that assesses the quality of teacher-child interactions in center-based preschool classrooms, is used as part of the Triennial review process, among other things (Use of CLASS^® in Head Start).

National Statistics are available on the use of CLASS^®: National CLASS^® Reports.

A review of each newly designated Head Start agency immediately after the completion of the program's first year.

A review of programs with significant areas of noncompliance as well as return visits to Head Start agencies with one or more findings or deficiencies.

The Head Start Key Indicators-Compliant (HSKI-C) review report informs grantees of their eligibility for either differential monitoring or comprehensive monitoring. Grantees that qualify for differential monitoring receive a smaller number of reviews during their five-year grant period. These typically include an Environmental Health & Safety (EnvHS) Review and a CLASS^® Review for Head Start programs. Early Head Start programs receive the Environmental Health & Safety Review and the School Readiness and Comprehensive services review. Grantees that do not qualify for the HSKI-C or that are not successful with the HSKI-C Review will receive comprehensive monitoring, which includes Fiscal Integrity, ERSEA, Comprehensive Services and School Readiness, and Leadership, Governance, and Management Systems Reviews.

The Fiscal Integrity/ERSEA Review Report describes Head Start grantee compliance with Head Start fiscal requirements, with federal cost principle requirements, and with Eligibility, Recruitment, Selection, Enrollment, and Attendance (ERSEA) requirements. The fiscal integrity review helps OHS to ensure programs have sound internal controls, strong reporting systems, and use federal funds for intended purposes. The ERSEA review assesses a program's practices for verifying the eligibility status of children, families, and pregnant women receiving the program's services and for ensuring the appropriate enrollment of children into the program. It also assesses program practices supporting children's attendance.

Initiated if issues with a grantee's performance is brought to the attention of OHS. Conducted on an as needed basis and focus on the issue identified as a concern.