PlantVax, Inc. has been contracted by a tier one US defense contractor as the primary supplier of Recombinant Human Acetylcholinesterase (AChE) in support of a Program of Record chemical warfare disclosure spray. The disclosure spray is a first-of-its-kind plant derived enzyme-based sensor that users apply to wide surfaces, enabling rapid visual indication of chemical warfare agents. The spray requires the high expression and stability levels in the AChE that PlantVax specializes in providing. The end product is the first product of its kind that is able to utilize a recombinant, plant-expressed AChE.