The full answer
Beef can be Halal when the cow has been properly slaughtered according to Zabiha requirements.
Regular supermarket beef is not automatically Halal.
Look for verified hand-Zabiha beef from an approved source.
Answers in the Halal Knowledge Center reflect the standards followed by Halal Monitoring Services (HMS), which operates as part of the Shariah Board of America. HMS certifies only what it checks.