15 hours per year, at least 3 of which must be considered Ethics.
It’s stereotypically amusing that it’s the Ethics hours that are hardest to get. I’ll see all kinds of courses that will offer 6-15 hours of CLE…with 1 hour of Ethics.
I would add this to the answer, and also in response to
@Umbran ...
CLEs are mandated by the state bar, and law is intensely local. Different states will have different requirements. Some have requirements by year, some by reporting cycle (such as every three years). Some are mandatory, and some are permissive.
Some states have low requirements (Alaska, for example, has a requirement of three hours per year in ethics that are mandatory, Hawaii has a requirement of three per year, and three in ethics every three years), some have no requirements (Maryland, D.C.), but the vast majority require somewhere between 12 and 15 hours per year, reported a yearly, biannual, or every three-year basis.
In addition, there are attorneys that carry multiple bar licenses, and in that case there is always the issue of which CLEs are eligible to be used in multiple jurisdictions.
Finally, in my experience, I have noticed a general divide between attorneys when it comes to CLEs. Some love going to luncheons of "events" and view the CLE as an excuse (often with the ability to "write it off") to travel somewhere and have a good time while getting their CLEs too. Others view it as a continuing nuisance, and will wait to the last minute and then do some quick on-line CLEs to make up the requirement each time.
ETA- But yeah, Danny is correct. I've never said to myself, "Self, I'm going to that CLE for the great food. Yummy Bahn Mi and ethics, yo!"