Category 4

• Armed Services Vocational Aptitude Battery
• Categories of New Testament manuscripts
• Category 4 cable
• Category 4 fireworks
• Category four stadium
• Class 4 (disambiguation)
• Classification of non-silicate minerals
• Group 4 (disambiguation)
• IUCN protected area categories
• Measurement category
• Northeast Snowfall Impact Scale
• Pandemic Severity Index
• Regional Snowfall Index
• Tropical cyclone scales
• Type 4 (disambiguation)
• Vintage car
• list of Category 4 Atlantic hurricanes
• list of Category 4 Pacific hurricanes
• list of Northeast Snowfall Impact Scale winter storms