Why can hotels buy 3.5 gpf toilets, and we can't?

[RBrown]

Stayed at a Hampton Inn a couple of weeks ago and the hotel room was equipped with an American Standard 3.5 gpf toilet that used a flapper. Why can't an average citizen buy one of these?

[hj]

After the 1.6 gpf rule went into effect, companies were allowed to make 3.6 gpf models and label them "for commercial use only". I am not sure if anyone still makes them, but American Standard seems to have dropped them in favor of just making all 1.6 models.