Class B

• Army Service Uniform
• B-class (disambiguation)
• Barry Railway Class B
• Class A office space
• Class B (baseball)
• Class B drug
• Class B share
• Class B star
• Electrical safety testing
• Electronic amplifier
• LNWR Class B
• Misuse of Drugs Act (disambiguation)
• Title 47 CFR Part 15
• Type B (disambiguation)
• Type B ship
• airspace class
• biosolids
• campervan
• classful network
• fireworks
• list of North American broadcast station classes