Hartford Life has added Boston, Chicago and Dallas to the 2008 schedule for the Vault program.

Hartford Life, Simsbury, Conn., a unit of Hartford Financial Services Group Inc., Hartford, also has added sessions for the group disability insurance school in Charlotte, N.C., and Palm Springs, Calif.

The 3.5-day program includes information about both short-term and long-term disability insurance, and it can help prepare candidates for the Group Benefits Disability Specialist designation test.

The GBDS designation program is administered by the National Underwriter Company, Erlanger, Ky., the publisher of the NU Online News Service.