  The Heavy Photon Search experiment took its first data in a 2015 engineering
run using a 1.056 GeV, 50 nA electron beam provided by CEBAF at the Thomas
Jefferson National Accelerator Facility, searching for an electro-produced dark
photon. Using 1.7 days (1170 nb$^{-1}$) of data, a search for a resonance in
the $e^{+}e^{-}$ invariant mass distribution between 19 and 81 MeV/c$^2$ showed
no evidence of dark photon decays above the large QED background, confirming
earlier searches and demonstrating the full functionality of the experiment.
Upper limits on the square of the coupling of the dark photon to the Standard
Model photon are set at the level of 6$\times$10$^{-6}$. In addition, a search
for displaced dark photon decays did not rule out any territory but resulted in
a reliable analysis procedure that will probe hitherto unexplored parameter
space with future, higher luminosity runs.
