Two Baltimore-based companies have started work on a $38 million contract to build an advanced chemistry laboratory in Edgewood Area of Aberdeen Proving Ground, said Jeff Hinte, acting director for advanced planning and initiatives of the Edgewood Chemical Biological Center.

The center has been the focus of research and development involving the chemical warfare agents in the defense against chemical weapons at the proving ground since World War I.

Gaudreau Inc., an architectural firm, and Poole & Kent, a mechanical contractor, are to complete construction in two years.

The two companies competed with other firms for the work. "They were up against some really good competition," Hinte said.

The planning for the building has been in the works for a year and a half.

"We had to justify the need, create a program and design a concept," Hinte said.

"The $38 million provided sufficient capability to move out of antiquated buildings," Hinte said. "It allows us to support our mission to protect the work force and protect the homeland."

The 74,000-square-foot laboratory is to replace three labs in the Edgewood Area.

"It is the cornerstone of the chemical defense research and development," Hinte said.