Two Abreast in Key West
Tom asked: Is it lawful to ride two abreast on narrow Key West two-way (One lane each way) streets?
Lacking a local ordinance impacting a bicyclist, the state laws apply. I can find no such local restrictions for the City of Key West or Monroe County. See these posts. However, be aware that most, including many police officers, are not aware of the complexities in these posts.