CONTINUING EDUCATION INFORMATION:

ANNUAL CE HOURS REQUIRED FOR RENEWAL OF LICENSE (or CERTIFICATION):
(see the rules...OAC 490)
NHAs:  24 CEUS
RC/AL :  18 CEUS
RC:  16 CEUS
ADC:  12 CEUS
CAAs:  24 CEUs (as a condition of employment)

IF there's a valid reason (illness, emergency, or hardship) you cannot accomplish your CEUs
prior to renewing, see OAC 490:1-9-4(g), which details HOW to apply for a waiver and WHEN you must do it...

The Board acts on such requests on a case-by-case basis.
Not being able to attend a convention is typically not going to measure up as an emergency or hardship because you CAN get your CEUs online...

NOTE:
Since this question comes up a lot these days...
The Board does not have any waiver authority (such as during the recent pandemic) to waive all or some of the requirements.  Their "wiggle room" (because the Board is required to conduct random audits, by law) comes in the form of their reaction to those audits.  For 2020 CEUs, normal audits were conducted but nobody was penalized (they viewed the results of the audits as information).  A determination for an approach for 2021 CEUs has not been made at this time, so it's still best for you to meet or exceed the requirements (coincidentally, most of those audited in 2020 did meet and many exceeded the requirements and that information may weigh into the decision regarding 2021 CEUs).