Maryland corrections officials, acknowledging their plan is incomplete, unveiled a $368 million program yesterday to reform the aging state prison system -- including contruction of a $15 million prerelease center in Prince George's County that would be the first state penal facility in the Washington suburbs.

"It is a blueprint for the future and allows us to build state-of-the-art facilities," said Bishop L. Robinson, secretary of the Department of Public Safety and Correctional Services. If the General Assembly funds the program, he said, "we won't have to spend a lot of money {on prisons} for a long time to come."

Members of the Joint Legislative/Executive Committee on Corrections Capital Planning applauded the formation of the 11-year plan, which calls for prison construction, increased emphasis on job training and education and a new inmate classification system.

But several key legislators raised concerns that the plan did not address the role of local detention facilities in taking inmates nearing the end of their sentences and did not provide for new facilities and programs for the state's 500 female inmates.

Prince George's County officials, some of whom were caught off-guard last week when news of the plan leaked to the news media, pressed state officials to delay choosing a site for the prison until a county prerelease facility is completed.

The county plans to begin construction in 18 months on a 100-bed work-release center in Hyattsville that was funded by the General Assembly two years ago. Construction is to start on the 192-bed state prison facility within three to six years. Robinson agreed to consider the request to move slowly.