| Application deadline | Unconfirmed — check official site | Unconfirmed — check official site | Unconfirmed — check official site |
|---|
| Cost | Unconfirmed — check official site | Last year's cycle (2026): $3,975; 2027: Unconfirmed — check official site | Last year's cycle (2026): $5,518; 2027: Unconfirmed — check official site |
|---|
| Financial aid | Unconfirmed — check official site | Last year's cycle (2026): ASC 2026 financial-aid funds: Up to $3,975. General fund up to half, Sydney Stark Jr. Memorial fund up to full tuition, and Military Family fund at least half; historical terms only.; 2027: Unconfirmed — check official site | Last year's cycle (2026): 2026 need-based application and program assistance: Up to $5,564. Could assist with the $46 application fee and $5,518 program cost based on family income, family size and available funds; actual award not guaranteed.; 2027: Unconfirmed — check official site |
|---|
| Expenses and aid conditions | Unconfirmed — check official site | Last year's cycle (2026): Nonrefundable tuition deposit upon registration: $150. Part of tuition, not an additional $150 program price.; ASC 2026 financial-aid funds: Up to $3,975. General fund up to half, Sydney Stark Jr. Memorial fund up to full tuition, and Military Family fund at least half; historical terms only.; 2027: Unconfirmed — check official site | Last year's cycle (2026): 2026 COSMOS application fee: $46. Nonrefundable; pending fee-waiver review could change when or whether payment was required.; Credit-card transaction fee on program payments: Amount: Unconfirmed — check official site. Approximately 2.5% when paying program costs by credit card; application fee exempt.; 2026 need-based application and program assistance: Up to $5,564. Could assist with the $46 application fee and $5,518 program cost based on family income, family size and available funds; actual award not guaranteed.; Full-financial-aid attendance deposit: $200. Required only for admitted students offered full aid and refunded to the legal guardian after successful completion.; 2027: Unconfirmed — check official site |
|---|
| Stipend or pay | Unconfirmed — check official site | Unconfirmed — check official site | Unconfirmed — check official site |
|---|
| Eligibility | Unconfirmed — check official site | Grades 8–12; Grade timing: Unconfirmed — check official site | Grades 9–12 (provider uses rising grades) |
|---|
| Additional eligibility | Requirement: American Legion Boys State gives selected high-school students hands-on experience creating and running a mock state government. Schools and local Legion posts usually recommend, interview and select delegates. Requirements, dates and costs are set by the state programme.
Two delegates from each Boys State programme may advance to Boys Nation in Washington, D.C. The national 2027 session is announced for summer, but that is not a shared Boys State application deadline or venue. Sponsorship and family-paid costs must be checked locally. | Ages 13–19; Requirement: Be a rising 8th grader through a graduated 12th grader, or homeschool equivalent; Requirement: Be age 13-19 at the applicable start-date checkpoint; Requirement: Apply and receive an acceptance decision; Requirement: Complete accepted-camper registration and deposit before capacity fills; Requirement: Be prepared for a full residential schedule, auditions, rehearsals, classes, performance, and shared living; Exclusion: A rising 7th grader is ineligible even if already 13; Exclusion: A rising 8th grader is ineligible if still 12 at camp; Exclusion: A student who has completed a college freshman year is ineligible even if 18; Exclusion: Acceptance does not reserve a seat until registration is complete; Exclusion: No prior performance experience was required, and admission did not guarantee a particular play, role, solo, college credit, or professional outcome | Residency: Attend high school in person in California; Requirement: Be rising into grade 9, 10, 11 or 12 for the program fall year; Requirement: Attend high school in person in California; Requirement: Demonstrate academic excellence and preparation for the selected STEM cluster; Requirement: Complete cluster-specific course prerequisites; Requirement: Live on the host UC campus for the full program; Requirement: Be a first-time COSMOS participant; Exclusion: Students not attending a California high school in person; Exclusion: Students who previously attended any COSMOS program; Exclusion: Applicants outside the rising-grade 9-12 range; Exclusion: Applicants unable to live on campus for the full program; Exclusion: Late application, supporting, payment or admission materials; Exclusion: Assuming a 3.5 GPA is an absolute statewide minimum rather than the published typical profile |
|---|
| Session dates or duration | Unconfirmed — check official site | Catalog terms: 3 weeks; 2027: Unconfirmed — check official site | Catalog terms: 4 weeks; 2027: Unconfirmed — check official site |
|---|
| Format | Unconfirmed — check official site | In person | In person |
|---|
| Housing and supervision | Unconfirmed — check official site | Residential. Supervision and housing details: Unconfirmed — check official site | Residential. Supervision and housing details: Unconfirmed — check official site |
|---|
| Location | Unconfirmed — check official site | Staunton, Virginia; Mary Baldwin University and Blackfriars Playhouse | Davis, California, Irvine, California, Los Angeles, California, Merced, California, San Diego, California, Santa Cruz, California, UC Davis, UC Irvine, UCLA, UC Merced, UC San Diego, UC Santa Cruz |
|---|
| Selection and application | Unconfirmed — check official site | Selection: Attendance was by acceptance, applications were reviewed monthly, and accepted-student registration was first-come, first-served. ASC did not publish applicant count, acceptance rate, or detailed judging rubric. | Selection: Each of six campuses accommodates roughly 160-200 students, and clusters typically enroll 20-25 with a commonly reported 5:1 student-to-faculty ratio. Admissions are competitive and based on academic merit relative to the selected topic, but applicant count and statewide acceptance rate were not published. Application materials: One personal statement; One required teacher recommendation, with two recommended |
|---|
| Official sources | Source 1 · checked 2026-10-09Source 2 · checked 2026-10-09Source 3 · checked 2026-08-21 | Source 1 · checked 2026-08-20Source 2 · checked 2026-08-20Source 3 · checked 2026-08-20 | Source 1 · checked 2026-08-22Source 2 · checked 2026-08-22Source 3 · checked 2026-08-22Source 4 · checked 2026-08-22Source 5 · checked 2026-08-22Source 6 · checked 2026-08-22Source 7 · checked 2026-08-20 |
|---|