By Alex Stone6 min readLast fact-checked May 2026
Jump to a section7 sections
CLEP US History I and AP US History are two College Board exams that award college credit for early American history at thousands of US colleges. The two are not interchangeable: CLEP is multiple-choice only, runs year-round, and is built for adult learners; AP includes essays and a document-based question, runs once each May, and is built for current high-school students.
This guide is for students choosing between them. If you've already decided on CLEP and want a study plan, jump to the CLEP US History I study guide for the full prep walkthrough, or the CLEP US History I 30-hour study plan.
Quick comparison
| CLEP US History I | AP US History | |
|---|---|---|
| Period covered | Early Colonization to 1877 | Pre-Columbian to present |
| Format | 120 multiple-choice questions, 90 minutes | Multiple-choice + short answer + 1 long essay + 1 DBQ, 3 hours 15 minutes |
| Score scale | 20 to 80 (ACE-recommended pass at 50) | 1 to 5 |
| Credit awarded | Typically 3 semester hours | Typically 3 to 6 semester hours, depending on score and school |
| Cost | $97 (as of May 2026) | $99 plus optional fees |
| Audience | Adult learners, military, transfer students | Current high-school juniors and seniors |
| When taken | Year-round at Prometric or remote-proctored | One specific date in May |
| Acceptance | About 2,900 US colleges | About 4,000 US colleges, but rules vary by score |
The audiences are different
AP US History is built for high-school juniors and seniors. You take it in May, after a year-long AP class, and the score is reported with your high-school transcript. Most students who pass do it as part of their college-application package.
CLEP US History I is built for everyone else. Adult learners going back to school. Active-duty military and veterans (DSST and CLEP are both free to active military through DANTES). Transfer students who already have college credit and want to add more cheaply. Working professionals enrolled in a degree-completion program at TESU, Excelsior, or Charter Oak. The exam runs year-round, can be scheduled within a few weeks, and the credit shows up on your college transcript instead of your high-school one.
If you're a current high-school student in an AP class, take AP. The infrastructure is already paid for, and a 4 or 5 will get you 3 to 6 credits at most schools. If you're not in an AP class right now, CLEP is almost always the better choice.

Coverage and content
The biggest substantive difference: CLEP US History I stops at 1877. AP US History runs through the present day. That makes them not directly substitutable. AP is a year-long survey of all American history; CLEP US History I is the first half. Most schools that accept CLEP US History I pair it with CLEP US History II (1865 to present) for a full survey-equivalent.
Within the early-American period both cover, the question style differs. CLEP is multiple-choice only and rewards recognition of named events, dates, leaders, and major political crises. AP adds short-answer questions, a long-form essay, and a document-based question (DBQ) where students analyze primary-source excerpts. AP rewards historical-thinking skills (causation, comparison, contextualization) more than CLEP does.
What schools actually accept
This is the part most comparison articles get wrong. Both exams are accepted by thousands of schools, but the rules are not symmetric.
CLEP acceptance:
- About 2,900 schools accept CLEP for credit at the ACE-recommended passing score (50 out of 80)
- The Big Three online schools (TESU, Excelsior, Charter Oak) accept CLEP very generously, including stacking many CLEPs to complete a full degree
- Many state university systems accept CLEP for general-education credit but not for major-track credit
- Most Ivy-tier schools (Harvard, Yale, Princeton, MIT, Stanford) do not accept CLEP at all
AP acceptance:
- About 4,000 schools accept AP for credit at score thresholds that vary by school (commonly 4 or 5)
- Many selective schools accept AP score 5 for credit but not 4
- Some elite schools (MIT, Caltech) accept AP for placement only, not credit
- A handful (Brown, Williams) accept AP only for placement past prerequisites
The asymmetry to know: AP credit transfers to elite schools where CLEP doesn't. CLEP transfers to adult-learner-friendly schools where high-school AP score reports won't help you anymore. If your college plan involves the Ivies or the most selective LACs, AP is the only option that will move the needle. If you're aiming at TESU, Excelsior, Charter Oak, a state flagship, or any community college, CLEP transfers further per dollar of effort.
When to take which
Take AP US History if:
- You're a current high-school student and your school offers an AP US class
- You're targeting an Ivy, a top-25 LAC, or any school where CLEP isn't accepted
- You want the AP credential on your high-school transcript for college admissions
Take CLEP US History I if:
- You're an adult learner returning to school
- You're active-duty military or a veteran (it's free via DANTES funding)
- You're enrolled at TESU, Excelsior, Charter Oak, or any open-admission school where CLEP transfers cleanly
- You're a transfer student who needs cheap, flexible credit to fill out a degree plan
- You graduated high school more than a few years ago (AP score reports older than 4 years are often disregarded)
Take both if: you're a high-school student aiming for a school that takes both, with extra time and motivation. CLEP gives you a second shot at credit if your AP score isn't high enough.
A note on transcripts
This is the question most comparison articles miss: what actually goes on your college transcript?
For AP, your AP score gets reported by the College Board to the college after you matriculate. The college decides what credits to award based on the score. The credits show up as either named-course credit ("HIST 1301: 3 credits, Pass") or generic credit ("History elective: 3 credits").
For CLEP, the same thing happens, but the trigger is enrollment plus score-report request. Most schools that accept CLEP record it on the transcript the same way as transfer credit from another school: as "HIST 1301 (CLEP), 3 credits, Pass" or similar.
Neither shows up as a letter grade. Neither affects your GPA. Both count toward graduation requirements at schools that accept them.
Frequently asked questions
Can I use both CLEP and AP US History together?
Yes, at most schools. They typically count as different credits (CLEP US History I covers early colonization to 1877; AP covers all of US history). Some schools cap total credit-by-exam at a specific number, so check your program's transfer policy.
Is CLEP US History I easier than AP US History?
For most students, yes. CLEP is multiple-choice only and tests recognition rather than essay writing. AP requires you to write a long-form essay and a document-based question under time pressure, which is a substantially harder skill.
Which counts toward my major if I'm a history major?
Schools generally accept either for general-education credit. For history-major credit (upper-division major coursework), schools more often require the actual major-track classes regardless of CLEP or AP credit. Always confirm with your academic advisor.
Does CLEP US History I expire?
No. Once it's on your transcript, it's permanent. AP scores also don't expire on the College Board's side, but some colleges decline to accept AP scores older than 4 years for new admissions.
Can I take CLEP US History I if I already passed AP US History?
Yes, but it usually duplicates credit you already have. Most schools will count one or the other for the early-American history slot, not both. Check your program first.
What's the cheapest path through this requirement?
For active-duty military: DSST or CLEP, both free via DANTES. For everyone else: CLEP at $97 is cheaper than AP at $99 plus the year of class, plus the year of opportunity cost. CLEP wins on dollars per credit if you can pass without a year of formal coursework.
Where should I start prepping?
Start with the [CLEP US History I study guide](/clep/history-us-1). It covers content distribution, the 70/30 rule (1790-1877 carries 70 percent of the exam), and the official passing score. Then layer the [CLEP US History I 30-hour study plan](/guides/clep-us-history-1-30-hour-study-plan) and the [CLEP US History I antebellum-period deep dive](/guides/clep-us-history-1-antebellum-period) if those are your weak spots.

Alex Stone founded Flying Prep after earning her bachelor's degree from Thomas Edison State University using 27 CLEP and DSST exams to test out of 99 credits. She built Flying Prep to help working adults and returning students take the same path.
Last fact-checked May 2026
Deep dives
Go deeper on CLEP History of the United States I

Drill
Reconstruction Amendments cheat sheet (13th, 14th, 15th)
The three Reconstruction Amendments are guaranteed material on CLEP US History I. Here's the year, the scope, the limitation, and the named cases that test each one.
Read it
Drill
The antebellum period: 70 percent of the CLEP US History I exam
1790 to 1877 is where the points actually live. Master the four sub-eras (Federalist, Jacksonian, sectional crisis, Civil War and Reconstruction) and you can pass the exam without ever reading a colonial-era textbook chapter.
Read it
Plan
How to study for CLEP US History I in 30 hours
Most readers can pass this exam with 30 hours of focused review. Here's the day-by-day breakdown that targets the 70 percent of the exam that lives in 1790 to 1877.
Read it
See the full CLEP History of the United States I study guide for the practice quiz, study plan, and credit details.
