The mission of the Secretary for Business, Transportation and Housing (BTH) is to oversee and coordinate the activities of 13 departments and several important economic development programs and commissions. These entities improve California's place in the global marketplace by leveraging the state's advantages to promote job and business growth, improving transportation mobility, and increasing affordable housing opportunities while promoting environmental quality and safe communities.

Departments in the BTH Agency include:

• California Housing Finance Agency
• Department of Alcoholic Beverage Control
• Department of the California Highway Patrol
• Department of Corporations
• Department of Financial Institutions
• Department of Housing and Community Development
• Department of Managed Health Care, including the Office of the Patient Advocate
• Department of Motor Vehicles
• Department of Real Estate
• Department of Transportation
• Office of Real Estate Appraisers
• Office of Traffic Safety

Additionally, economic development programs include:

• California Film Commission
• California Travel and Tourism Commission
• Infrastructure and Economic Development Bank
• International Trade Promotion
• Office of Military and Aerospace Support
• Small Business Loan Guarantee Program