Chlormequat chloride is a systemic chemical PGR with extremely long withholding periods so when you use it is important.
You should know how long withholding periods are.
I don’t have that info handy but if I run across it I will post it.
EPA failed to require a developmental neurotoxicity study for chlormequat chloride ,
There appears to be evidence for developmental and reproductive toxicity
https://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=&cad=rja&uact=8&ved=2ahUKEwjGyoKLsYGGAxWvg4kEHc1wAr8QFnoECCMQAQ&url=https%3A%2F%2Fwww.thenewlede.org%2F2023%2F05%2Fepa-proposes-new-uses-of-chlormequat%2F&usg=AOvVaw2kGtygkICVf2p3vvtyfTwv&opi=89978449
Essentially says that 84 days after application, there is still a significant amount of CCC residue present. ~50mg/kg on day 0 and still ~15mg/kg on day 84.
The bottom line is this product is NOT broken down quickly by plants.
You can find important info, page 16 (3.1 Nature and magnitudes of residue in plants) from Conclusion regarding the peer review of the pesticide risk assessment of the active substance chlormequat | EFSA
One other thing to consider is that pesticides are being directly inhaled into the lungs with a combustible crop which means they pass into the blood and organs very effectively when compared to edible produce.
For example, a 1 packet a day cigarette smoker has 3 - 5 times the blood cadmium levels of a non smoker etc.
The Werc Shop ran research on pesticides in the smoke stream and showed that a high percentage of pesticide residue goes directly into the lungs.
Summary:
Chlormequat chloride is a reproductive and developmental toxicant, and exhibits neurotoxicity , which are not accounted for by the EPA.