  We present the data release and data reduction process for the Epoch 1 NIRCam
observations for the Cosmic Evolution Early Release Science Survey (CEERS).
These data consist of NIRCam imaging in six broadband filters (F115W, F150W,
F200W, F277W, F356W and F444W) and one medium band filter (F410M) over four
pointings, obtained in parallel with primary CEERS MIRI observations (Yang et
al. in prep). We reduced the NIRCam imaging with the JWST Calibration Pipeline,
with custom modifications and reduction steps designed to address additional
features and challenges with the data. Here we provide a detailed description
of each step in our reduction and a discussion of future expected improvements.
Our reduction process includes corrections for known pre-launch issues such as
1/f noise, as well as in-flight issues including snowballs, wisps, and
astrometric alignment. Many of our custom reduction processes were first
developed with pre-launch simulated NIRCam imaging over the full 10 CEERS
NIRCam pointings. We present a description of the creation and reduction of
this simulated dataset in the Appendix. We provide mosaics of the real images
in a public release, as well as our reduction scripts with detailed
explanations to allow users to reproduce our final data products. These
represent one of the first official public datasets released from the Directors
Discretionary Early Release Science (DD-ERS) program.
