Registration is open for all year and fall only courses. Spring registration will be available at a later date.
- Academy for Science and Design (Registration for this school is currently closed)
- Alvirne High School (Registration for this school is currently closed)
- Amesbury High School, Massachusetts (Registration for this school is currently closed)
- Bishop Brady High School (Registration for this school is currently closed)
- Blue Mountain Union High School, Vermont (Registration for this school is currently closed)
- Bow High School (Registration for this school is currently closed)
- Brattleboro Union High School, Vermont (Registration for this school is currently closed)
- Campbell High School (Registration for this school is currently closed)
- Central High School (Registration for this school is currently closed)
- Coe-Brown Northwood Academy (Registration for this school is currently closed)
- Concord High School (Registration for this school is currently closed)
- Danville High School, Vermont (Registration for this school is currently closed)
- Dover High School (Registration for this school is currently closed)
- Exeter High School (Registration for this school is currently closed)
- Fall Mountain Regional High School (Registration for this school is currently closed)
- Hollis Brookline High School (Registration for this school is currently closed)
- Holy Family Academy (Apply Online)
- The Hyde School, Maine (Registration for this school is currently closed)
- Londonderry High School (Registration for this school is currently closed)
- Lumen Scholar Institute, Utah (Registration for this school is currently closed)
- Memorial High School (Registration for this school is currently closed)
- Merrimack High School (Registration for this school is currently closed)
- Midd-West High School, Pennsylvania (Registration for this school is currently closed)
- Milford High School (Registration for this school is currently closed)
- Nashua North High School (Registration for this school is currently closed)
- Nashua South High School (Registration for this school is currently closed)
- Oyster River High School (Registration for this school is currently closed)
- Pelham High School (Registration for this school is currently closed)
- Pembroke Academy (Registration for this school is currently closed)
- The Pittsburgh School (Registration for this school is currently closed)
- Portsmouth Christian Academy (Registration for this school is currently closed)
- Portsmouth High School (Registration for this school is currently closed)
- Raymond High School (Registration for this school is currently closed)
- Salem High School (Registration for this school is currently closed)
- Sanborn Regional High School (Registration for this school is currently closed)
- Seacoast School of Technology (Registration for this school is currently closed)
- Souhegan High School (Apply Online)
- Spaulding High School (Registration for this school is currently closed)
- St. Johnsbury Academy, Vermont (Registration for this school is currently closed)
- St. Thomas Aquinas (Registration for this school is currently closed)
- Timberlane Regional High School (Apply Online)
- West High School ( Registration for this school is currently closed)
- Windham High School (Registration for this school is currently closed)
- Winnacunnet High School (Registration for this school is currently closed)