Passed CRP on my second try — here's what finally worked

Same experience here. I work at a MRF and assumed hands-on knowledge would be enough. The commodity markets section wasn't something I could fake my way through. Ended up buying the ISRI study guide and it made a real difference.

I passed on my first attempt but it was closer than I'd like to admit — about 74%. The contamination rate calculations were something I practiced with real numbers from work, which helped a lot. Definitely not a test you can wing.

The pricing and markets section is legitimately hard if you haven't dealt with commodity trading. I'd recommend looking at actual LME data and understanding how ferrous vs non-ferrous pricing works. That clicked for me about 3 weeks before the exam.

Congrats on passing. I'm 9 weeks out right now and the electronics recycling regulations section is killing me. There's so much variation by state, it's hard to know how deep they go. Did you notice a lot of questions on e-waste specifically?

Man, this hit close to home. I failed my first CRP attempt in September by 11 points — almost exactly your situation. Thought my background in ferrous grading would cover the gaps, but the exam just destroyed me on RCRA requirements and the Basel Convention stuff. I'd barely touched the regulatory modules because honestly I assumed that was the "book knowledge" part that didn't matter much in practice. Wrong.

What I changed the second time was forcing myself to actually sit with the material I hated. The market economics section — commodity pricing cycles, global scrap flow, how currency fluctuations affect export markets — I'd glossed over all of it the first time. Second attempt I made myself do timed crp practice test questions specifically on those weak areas until I stopped guessing and started actually knowing why the right answer was right. That distinction matters more than I expected on test day.

The other thing that helped was stopping myself from explaining away wrong answers with "well in my yard we do it differently." Real-world experience can actually work against you if you've picked up regional habits that don't match the ISRI framework. The exam tests what the standards say, not what 15 years on the floor taught you.