Here you will find various downloadable assets for Dust 1947, both official rules documents as well an unofficial, fan-made resources.

Official resources:
Dust 1947 Rule Book
Dust 1947 FAQ – Updated May 2017
Dust 1947 Rules Errata – Updated May 2017
Dust 1947 Scenery Rules – Updated April 2017
Dust 1947 Tournament Rules – Updated April 2017

Unofficial resources:
Dust Storm 2017 – Dust Vikings Tournament document, version 1.2

Square Cards for Allies – Updated June 22
Square Cards for Axis – Updated July 21
Square Cards for SSU – Updated August 9
Square Cards for Mercenaries – Updated June 13

Allies Dustified Units – Unofficial units from Dust Vikings, version 1.1
Axis Dustified Units – Unofficial units from Dust Vikings, version 1.1
SSU Dustified Units – Unofficial units from Dust Vikings, version 1.5

Files for older versions:
Dust Tactics Revised Edition Rulebook

Operation Cyclone
Operation SeeLöwe
Operation Cerberus
Operation Zverograd
Operation Hades
Operation Icarus

Dust Tactics 2nd Edition – Rules
Dust Tactics 2nd Edition – Special Rules
Dust Tactics 2nd Edition – Battlefield Rules