According to the Article 53 of the CPC constitution, "the Party emblem and flag are the symbol and sign of the Communist Party of China."
At the beginning of its history, the CPC did not have a single official standard for the flag, but instead allowed individual party committees to copy the flag of the Communist Party of the Soviet Union. On 28 April 1942, the Central Politburo decreed the establishment of a sole official flag. "The flag of the CPC has the length-to-width proportion of 3:2 with a hammer and sickle in the upper-left corner, and with no five-pointed star. The Political Bureau authorizes the General Office to custom-make a number of standard flags and distribute them to all major organs". According to People's Daily, "The standard party flag is 120 cm in length and 80 cm in width. In the center of the upper-left corner (a quarter of the length and width to the border) is a yellow hammer-and-sickle 30 cm in diameter. The flag sleeve (pole hem) is in white and 6.5 cm in width. The dimension of the pole hem is not included in the measure of the flag. The red color symbolizes revolution; the hammer-and-sickle are tools of workers and peasants, meaning that the Communist Party of China represents the interests of the masses and the people; the yellow color signifies brightness." In total the flag has five dimensions, the sizes are "no. 1: 388 cm in length and 192 cm in width; no. 2: 240 cm in length and 160 cm in width; no. 3: 192 cm in length and 128 cm in width; no. 4: 144 cm in length and 96 cm in width; no. 5: 96 cm in length and 64 cm in width." On 21 September 1966, the CPC General Office issued "Regulations on the Production and Use of the CPC Flag and Emblem", which stated that the emblem and flag were the official symbols and signs of the party.