Flags may be flown at half-mast to mark occurrences that meet the following criteria:
- A national period of mourning as observed by the Government of Canada;
- A provincial period of mourning as observed by the Province of Alberta;
- A municipal period of mourning as enacted by Council of the Town of Taber;
- Other periods of mourning as declared by the Government of Canada, Province of Alberta, or Town of Taber;
- Events that spur the Government of Canada to lower the National Flag of Canada.
- Events that spur the Government of Alberta to lower the Provincial Flag.
In the case of national or provincial causes for the half-masting of flags, the duration shall be established by the appropriate federal or provincial protocol offices.
In the case of municipal causes for half-masting, the duration shall be established by the Town of Taber.