As the manufacturer of the Smart Trailer USA, we've researched the brake laws, as best we could, and came to the decision that we would include electric brakes on our trailers regardless of the laws. That way our customers will be safe, covered, protected, whatever the law may say.
And, yes, we decided to eat the cost, something we are proud of.
If you want surge brakes (hydraulic), we offer those as an option.
Safe RV'ing to all.