Taking my DEQ exam in about 6 weeks and I'm honestly a little lost on how to structure the last stretch of prep. I've been working in environmental compliance for 3 years but the formal exam covers a lot of regulatory content I haven't touched since college. Anyone have a sense of how the questions break down between federal vs. state-specific regs?
I've been putting in about 2 hours a day on weeknights and 4-5 hours on weekends. My practice scores are sitting around 61-65% and I've heard you need at least 70% to pass, so I'm cutting it close. The Clean Water Act and RCRA sections feel solid but I'm really struggling with the air quality permitting content.
Has anyone used the official study guide versus third-party materials? I don't want to waste time on content that won't show up. Any advice on prioritizing the last few weeks would be huge.
I'd carve out a dedicated weekend to just do air quality questions back to back. That's what finally clicked it for me. Also make sure you know the NAAQS pollutants and their limits cold - those came up constantly on my exam.
I passed mine last fall with a 74% after about 8 weeks of prep. The air quality section tripped me up too - I'd spend at least 6-8 hours specifically on Title V permits and the PSD/NSR thresholds. They show up more than you'd think.
Practice tests were the most useful thing for me. Doing 20-30 questions a night and reviewing every wrong answer helped more than re-reading the material.
Don't stress too much about state-specific stuff unless you know which state's exam you're taking - some DEQ exams are state-administered and vary a lot. Federal baseline content like RCRA, CWA, and CAA is almost always fair game. 61-65% at 6 weeks out is workable.
The official prep materials are worth it for the question format even if some content feels dated. Third-party stuff can have errors, so double-check anything that seems off against the actual reg text before you internalize it.
Six weeks is honestly plenty if you stop trying to memorize and start asking yourself why each wrong answer is wrong. I didn't really click until I was doing practice sets and forcing myself to explain, out loud, why option B was tempting but off. The regulatory stuff especially -- once you understand the underlying logic of why a rule exists, the edge cases stop feeling random. For the greenhouse gas and climate stuff specifically, I found this set really helpful: deq/questions/climate change and greenhouse gas regulations. It's one of those areas where the wrong answers are designed to trip up people who know the general concept but missed the specific threshold or exception.
The three-year compliance background is actually a huge asset -- you've seen how this stuff plays out in the real world, which means you can sanity-check answers intuitively. Don't ignore that. Where you'll probably need the most focused work is the older regulatory history and the interconnections between different statutes, because that's where people with field experience tend to have gaps. Six weeks is enough. Just slow down on the questions you got right to make sure you got them right for the right reason.
I just passed mine two months ago so I feel this. Honestly the thing that clicked for me was stopping trying to memorize every reg and instead doing targeted practice questions by topic until I saw where my gaps actually were. Climate and GHG stuff caught me off guard because I hadn't touched it since college either, so I spent a solid week just grinding through deq/questions/climate change and greenhouse gas regulations until the patterns made sense. Six weeks is enough time if you're strategic about it.
Don't try to cover everything evenly. Find the topic areas where you're consistently missing questions and go deep there. The regulatory framework questions are the ones that trip most people up, not the conceptual stuff you probably already know from your compliance work.
Quick update on my end -- I was in a similar spot about three weeks ago and just took a practice exam yesterday. Got a 71%, which isn't great but honestly better than I expected given how rusty I was on the RCRA stuff. I've been doing about an hour a day focusing on the regulatory frameworks and it's starting to click.
Six weeks is solid time if you're consistent. I'm planning to sit the real thing in late August, so we're on roughly the same timeline. The practice questions have been more useful than rereading the regs for me -- you start to see the patterns pretty fast once you've done enough of them.