I'm sitting for the CES exam in 6 weeks and I'm starting to second-guess whether I gave myself enough runway. I've got about 4 years of environmental compliance experience, mostly in industrial permitting and stormwater management, so I'm not starting from zero. But the breadth of the exam content has me a bit nervous.
I've been putting in around 2 hours a day on weekdays and 4 hours on weekends, which comes out to roughly 18 hours a week. The hazardous waste management section is where I'm spending the most time because my day job doesn't touch RCRA all that much. The ecology and natural resources domain feels more comfortable, probably sitting around 70% accuracy on practice questions there.
The scoring is what confuses me — it's a scaled score and different prep sources give different pass estimates. Some say 70% correct is enough, others suggest you need closer to 75-80% depending on the form you get. Has anyone actually failed with 73%+ on practice tests going in? Trying to calibrate my confidence here.
The scaled scoring thing drove me crazy too. I was hitting 76-78% on practice consistently and ended up passing, so I'd say that range is a decent buffer. Just make sure your practice questions are from a source that's updated for the current exam version.
Don't underestimate the environmental law and policy questions. I thought my field experience would carry me but a lot of the questions are very specific about statutory authority and deadlines under CERCLA and RCRA. That section probably cost me 5 points I didn't expect to lose.
6 weeks with your background should be fine. I had 5 years in air quality and passed with about 4.5 weeks of prep, averaging maybe 15 hours a week. The hazardous waste section is legitimately the hardest part if you haven't lived it day-to-day.
Quick update for anyone following this thread: I just finished a full-length practice exam last night and scored a 74, which honestly surprised me. I've been grinding through air quality and hazardous waste regs for the past two weeks and it's starting to click. Still shaky on solid waste disposal specifics but I've got three weeks left before I sit for it on July 3rd.
Your timeline sounds totally doable with your background. Four years in permitting and stormwater isn't nothing. I came in with similar experience and the biggest gap for me wasn't the content I knew, it was the stuff I'd never touched at all. Fill those holes first and you'll be fine.
Six weeks is totally doable, especially with your background. I'll be honest though -- I failed my first attempt and it wasn't because I didn't have enough experience, it was because I underestimated how specific the exam gets on things like waste management and pollution control regs. Second time around I drilled those areas hard, spent a lot of time on free ces waste management and pollution control practice questions, and that made a real difference.
The thing that changed most for me was shifting from reading to actually testing myself under timed conditions. Six weeks is enough if you're deliberate about it. Don't just review content you already know because it feels comfortable -- go find your weak spots early and stay there until they're not weak anymore.
Related Discussions
- CES Certified Enrollment Specialist — what's the ACA knowledge requirement really like?5 replies
- Is the CES certification worth it? My 8-week study experience5 replies
- CES exam prep coming from PT background - how different is the ergonomics content?5 replies
- How long did it actually take you to pass the NASM CES exam?5 replies
- CES exam prep — what's the format and how hard is the ATF content?4 replies