Organizations

Canada

• Vancouver Traffic Authority, a department within the Vancouver Police Department responsible for directing traffic and enforcing traffic-related laws.

US

• the Santa Clara Valley Transportation Authority;
• the Martha's Vineyard Regional Transit Authority.

Science

• In aviation, VFR Terminal Area Charts
• In medicine and neuroscience, VTA abbreviates Ventral tegmentum, which is part of the midbrain tegmentum that lies close to the substantia nigra and the red nucleus.