Technician a Says in 1996 the EPA Mandated the Use

Multiple Choice

Technician A says in 1996 the EPA mandated the use of OBD testing as a replacement for tailpipe and dynamometer testing of emissions. Technician B says in 2001 the EPA ruled that OBD testing be performed in lieu of testing tailpipe emissions on vehicles produced beginning in 1996. Who is correct?

A) A only
B) B only
C) both A and B
D) neither A nor B