Rules on Half-Masting Flags on Gov't Buildings

Executive Order No. 166 requires half-masting of the American and Philippine flags on Government buildings as a sign of national mourning for departed heroes.
Executive Order No. 166 sets who may order half-masting depending on the person affected and the territorial coverage.
Executive Order No. 166 recognizes half-masting observances tied to death, funerals, anniversaries, and national mourning or national loss.

Half-masting applies to flags on Government buildings.
Rules for memorial observance apply to the American and Philippine flags on Government buildings.
Territorial coverage for orders depends on the office or official whose death triggers the observance (national, provincial, city, municipal).
School officials may order half-masting for flags within the schools concerned during death or funeral circumstances.

On Memorial Day, specifically May thirtieth of every year, the American and Philippine flags on Government buildings are to be half-masted at sunrise until noon.
The May thirtieth half-masting is done as a sign of national mourning for the departed heroes.
On the death of a distinguished official of either the United States or the Philippine Government, flags on all Government buildings throughout the Philippines may be half-masted only as authorized by the President or by the National Assembly through resolution.
Flags may also be half-masted throughout the Philippines on (i) the anniversary of the death of a great martyr or national hero, (ii) a date commemorating a national mourning, or (iii) a date commemorating a national loss, under the same national authorization requirements.
On the death of a ranking provincial official, flags on all Government buildings throughout the province concerned may be half-masted only by the provincial governor or by resolution of the provincial board.
On the death of a ranking city official, flags on all Government buildings throughout the city concerned may be half-masted only by the City Mayor or by resolution of the City Board.
On the death of a ranking municipal official, flags on all Government buildings throughout the municipality concerned may be half-masted only by the municipal mayor or by resolution of the municipal council.

For nationwide half-masting, only the President of the Philippines or a resolution of the National Assembly may order the flags on all Government buildings throughout the Philippines at half-mast.
For provincial half-masting, only the provincial governor or a resolution of the provincial board may order flags on Government buildings in the province at half-mast.
For city half-masting, only the City Mayor or a resolution of the City Board may order flags on Government buildings in the city at half-mast.
For municipal half-masting, only the municipal mayor or a resolution of the municipal council may order flags on Government buildings in the municipality at half-mast.
For teacher and school official cases, the proper school authorities may order the school or schools concerned to half-mast their own flags during the death or during the funeral.

During the death or during the funeral of any teacher, principal, supervisor, or other ranking school official, the school or schools concerned may half-mast their own flags by order of the proper school authorities.
On the death of any member of the Philippine Army, the army regulations regarding half-masting of flags must be observed.