This brings us to the topic of the "80 percent solution". My advice is: don't kill yourself trying to make your EPR draft perfect before sending it to your supervisor for review. I learned, through experience, that it served no practical purpose to labor over an EPR draft until every bullet statement, every sentence was "perfect". My carefully chosen words would be lost on my supervisor and he would just slash and mark up the EPR and return it with specific, if garbled, instructions written in the margins (with plenty of explanation points!!!). You can if you want to --turn in a "finished" draft --but, most NCOs agree that it's a waste of time and recommend the 80% solution: Get the product in pretty good shape, 100% complete, but don't waste a lot of effort on poetic nuances to get it just right. Your supervisor most likely won't understand the fine touches and will just mark it up with red ink. AFTER he returns the draft to you, THEN do your best work, dot all the i's and cross all your t's.
You can expect your supervisor to return your draft EPR several times for editing --with the justification being that someday, somewhere, at some mysterious, fabled Review Board, Senior NCOs will be reviewing stacks of EPRs to determine who gets the DREAM JOB of the Century. And if your EPR isn't juuuuuuuuuust right, it could mean that someone else will get that dream job instead of you. It could mean that, because you didn't take the time to use exactly the right word or list your bullet statements in the correct order, your rival, who DID cross his t's and dot his i's will get the job instead. I don't mean to dismiss their concerns entirely but... when was the last time you were interviewed for the position of Chief of the Atomic Air Force? Right. Me either.
I don't mean to totally dismiss people who place a lot of importance on EPRS --because they ARE important. They are a significant factor in whether you get promoted. Yes, promotion does depend on other factors (testing, time in grade, etc) but the promotion points of the EPR will almost certainly make the difference between getting promoted and NOT getting promoted. When I was a young airman, I used to think they weren't important and I'd get promoted by testing but I'm here to tell you, that's a hard way to go. For some career fields, it may be impossible to get promoted without a good (-5-) EPR. So I'm not saying they're not important --I'm just saying they're easy to complete. And complete accurately.
In summary, EPRs are easier to write than most people think. If you have all the information you need, which is the RIP and a list of the ratee's accomplishments, you can produce a pretty good draft in an hour or so depending on your ability. Click on the links below for specific instructions.
One of two forms is used for documenting performance. Use AF Form 910 for ranks AB through TSgt. Use AF Form 911 for MSgt and above. For an authoritative and comprehensive guide to acceptable format (abbreviations, punctuation, and general policy), see this Air Force EPR guide.