Blazon:Argent, a chevron gules between three blue bottles slipped azure.[3]
In 1881, Chorley became a borough. The next year an official Grant of Arms was made based on the old Commissioners' device:
Blazon;
Arms:Or on a Chevron Gules three Escochoens Argent each charged with a Blue Bottle slipped and leaved proper on a Chief of the second a Crown Vallery of the first
The Chorley Rural District Council was officially granted arms on April 28, 1952
Blazon;
Arms:Argent on a Pale Sable between two Cornflowers stalked leaved and flowered proper a Standish between two Cross Crosslets of the field.
Crest:Out of a Coronet composed of eight Roses Gules barbed and seeded proper set upon a Rim Or a Mount Vert thereon a Bull Argent supporting a Beacon Sable fired proper.
The cornflowers are from the arms of the Chorley family, as in the arms of the Borough of Chorley. The black pale represents the A6trunk road which runs through the district, and the emblems on it stand for the local families of Standish and Charnock.
The red roses are for Lancashire and the mount and beacon represent Rivington Pike. The beacon supported by a white bull is from the heraldry of the de Hoghtons, and also alludes to farming.[3]