"31 USC §5111(d)(2), 31 CFR §82.1(b) & 82.2(a)(2) make it a federal crime to leave the US with more than $25 worth of pennies in your pocket."
Most of that is about penalties but 31 CFR §82.2(a) has the $5 and $25 rules: https://www.law.cornell.edu/cfr/text/31/82.2
(I just guessed A Crime A Day had tweeted about this, US law seems to be mostly legacy code...)
"31 USC §5111(d)(2), 31 CFR §82.1(b) & 82.2(a)(2) make it a federal crime to leave the US with more than $25 worth of pennies in your pocket."
Most of that is about penalties but 31 CFR §82.2(a) has the $5 and $25 rules: https://www.law.cornell.edu/cfr/text/31/82.2
(I just guessed A Crime A Day had tweeted about this, US law seems to be mostly legacy code...)