  We report the results of a joint experimental {and} theoretical study of
dissociative electron attachment to formic acid (HCOOH) in the 6-9 eV region,
where H$^-$ fragment ions are a dominant product. Breaking of the CH and OH
bonds is distinguished experimentally by deuteration of either site. We show
that in this region H$^-$ ions can be produced by formation of two {or possibly
three} Feshbach resonance (doubly-excited anion) states, one of which leads to
either C-H or O-H bond scission, while the other can only produce formyloxyl
radicals by O-H bond scission. Comparison of experimental and theoretical
angular distributions of the anion fragment allows the elucidation of state
specific pathways to dissociation.
