I thought a "neutral safety switch" was for an automatic transmission. An
"interlock switch" (located at the clutch pedal) is for a manual
transmission. Both prevent starting of the car in gear yada...

www.hondaautomotiveparts.com indicates manual transmission Accords started
having the interlock switch about 1990. Civics, about 1992. Though I think
my 91 Civic has one, and my Chilton's manual suggests Civics earlier than
1992 have them.

"hardtstein" <chrishardt@sbcglobal.net> wrote
> My 1981 and 1987 Accords did not have a neutral safety switch for the
> manual 5 speed trans. My 2006 Civic has one. I am curious of when
> Honda started using them on their automobiles. TIA.