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ARTICLE 3.- The Mexican Flag consists of a rectangle divided into three vertical stripes of identical measures, with the colors in the following order from the flagpole: green, white and red. In the white and center section, it has the National Coat of Arms, with a diameter of three-quarters of the width of the stripe. The ratio between width and length of the flag is four to seven. It can have a loop or tie in the same colors, at the foot of the “moharra”. A model of the National Flag, authenticated by the three branches of the Union, will remain deposited in the “Archivo General de la Nacion” and another at the National Museum of History.

ARTICLE 10.- February 24, has been solemnly decreed  as Flag Day. On this day special radio and television programs must be transmitted to disseminate the history and significance of the National Flag. On this date, the powers of the three orders of government shall carry out civic acts in commemoration, veneration and exaltation of the National Flag.

ARTICLE 11.- In terms of this Act, all Federal Administration civil entities and units, as well as State Governments and Municipalities will honor the National Flag in a civil ceremony on February 24, September 15 and 16 and on November 20 of each year, regardless of the raising of the national labarum as specified in the calendar by article 18, act that may be carried out without special  honors. Public institutions and legally constituted groups, may also perform honor ceremonies to the National Flag, observing the solemnity and rituals that are described in this Law. The National Anthem shall also be played during these ceremonies.

 

ARTICLE 14.- The civil greeting to the National Flag will be in a firm standing position placing the right hand flat on the chest, palm down, at the height of the heart. Men will salute with their heads uncovered. The President of the Republic, as Supreme Commander of the armed forces, shall salute it in military fashion.

 

ARTICLE 16.- The National Flag will be raised on a daily basis at the Government Branches’ headquarters buildings, at the Immigration office, Customs, Port Authorities, International Airports; in diplomatic and consular offices abroad and at the Monumental Flag Pole in the Constitution Square in the capital of the Republic.

 

ARTICLE 18.- In the terms of article 15 of this Act, the National Flag should be hoisted:

A) At full-mast on the following dates and anniversaries:

January 21: 
Anniversary of the birth of Ignacio Allende, 1779.

February 1st: 
Opening of the second regular session of the Congress of the Union.


February 5: 
Anniversary of the promulgation of the Constitutions of 1857 and 1917.

February 19: 
 "Day of the Mexican Army".

February 24: 
 "Flag Day".

March 1st: 
Anniversary of the proclamation of the Plan of Ayutla.

(March 15.- repealed)

March 18: 
Anniversary of Oil Expropriation in 1938.

March 21: 
Anniversary of the birth of Benito Juarez in 1806.


March 26: 
Day of the promulgation of the Plan of Guadalupe.

April 2: 
Anniversary of the taking of Puebla, in 1867. 


(April 15.- repealed)


May 1st: 
 "Labor Day".

ARTICLE 18.- In the terms of article 15 of this Act, the National Flag should be hoisted on:

May 5: 
Anniversary of the victory over the French Army at Puebla in 1862. 


May 8: 
Anniversary of the birth of Miguel Hidalgo y Costilla, in 1753, initiator of the Independence of Mexico.

May 15: 
Anniversary of the taking of Queretaro by the Republic Forces, in 1867.


June 1st: 
 "Day of the National Navy". 


June 21: 
Anniversary of the victory of the national arms over the Empire, in 1867.

August 19: 
Anniversary of the installation of the American National Supreme Board of Zitácuaro in 1811.

 

September 1: 
Opening of the first regular session of the Congress of the Union.

September 11: 
Anniversary of the victory over the Spanish Army in Tampico in 1829.

September 14: 
incorporation of the state of Chiapas to the Federal Pact. 

September 15: 
Commemoration of the Shout for Independence.

September 16: 
Anniversary of the beginning of the Independence of Mexico, in 1810. 


September 27: 
Anniversary the consummation of the independence, in 1821.

September 30: 
Anniversary of the birth of Jose Maria Morelos, in 1765.

October 12: 
 "Columbus Day" and Anniversary of the Discovery of America, in 1492.

October 22: 
Anniversary of the constitution of the Liberation Insurgent Army, in 1810.

October 23: 
 "National Day of Aviation".

October 24: 
 "United Nations Day".

October 30: 
Anniversary of the birth of Francisco I. Madero, in 1873.

(November 1,.- repealed)

November 6: 
Commemoration of the promulgation of the solemn act of the Declaration of Independence in North America by the First Congress of Anahuac sanctioned in the Palace of Chilpancingo, in 1813.


November 20: 
Anniversary of the beginning of the Mexican Revolution in 1910. 

November 23: 
 "Day of the Mexican Army". 
 


December 29: 
Anniversary of the birth of Venustiano Carranza, in 1859.

The days of closure of the ordinary sessions of the Congress of the Union.

ARTICLE 18.- In the terms of article 15 of this Act, the National Flag should be hoisted: at half-mast on the following dates and anniversaries:

February 14: 
Anniversary of the death of Vicente Guerrero in 1831.

February 22: 
Anniversary of the death of Francisco I. Madero in 1913. 


February 28: 
Anniversary of the death of Cuauhtémoc in 1525.

April 10: 
Anniversary of the death of Emiliano Zapata in 1919.

April 21: 
Anniversary of the heroic deeds on the Defense of the Port of Veracruz.

May 2: 
Commemoration of the death of the Mexican pilots of the Air Force Expedition, Squadron 201 in 1945. 



May 21: 
Anniversary of the death of Venustiano Carranza in 1920.

July 17: 
Anniversary of the death of General Alvaro Obregon in 1928.

July 18: 
Anniversary of the death of Benito Juarez in 1872.

July 30: 
Anniversary of the death of Miguel Hidalgo y Costilla in 1811.

September 12: 
Commemoration of the heroic deeds of the San Patricio Battalion in 1847. 


September 13: 
Anniversary of the slaughter of Heroic Children of Chapultepec, in 1847.

October 2: 
Anniversary of the fallen in the struggle for democracy in the Plaza de las Tres Culturas in Tlatelolco, in 1968. 



October 7: 
Commemoration of the sacrifice of the senator Belisario Dominguez, in 913.

December 22: 
Anniversary of the death of Jose Maria Morelos in 1815. 


ARTICLE 20. -In the cases referred to in the previous articles, with the exception of the provisions for military facilities, educational institutions and boats in article 15, the National Flag will be raised at eight am and will be lowered at 6 pm.