The Six Flags in Bowie is among the new sites.
People over 75, K-12 teachers, and child care providers are next.
The ban was originally set to expire Jan. 16.
One Marylander who contracted the variant had recently traveled abroad.
The legislation, called the RELIEF Act, includes targeted stimulus checks.
The school is crafting a plan for vaccine distribution for when doses arrive.
A Bloomberg News report last week identified Maryland as among the worst states in the country at administering COVID-19 vaccines.
UMD will begin its participation in the initiative to better recruit and retain diverse STEM faculty members.
Dr. Van Bailey currently serves as assistant dean and director of diversity and inclusion at George Mason University.
The governor did not announce new coronavirus restrictions.