What are the rules for the arrangement of alarm signals?

The arrangement rules of 1 and 92 alarm numbers. The format of 92 alarm number is XX XXXXXX, in which the first and second digits represent the departments or regions to which they belong, the third and fifth digits are the codes of the county-level units to which the people's police belong, and the sixth and eighth digits are the serial numbers of the people's police of this unit. The first two figures are as follows: 0 1 Ministry of Public Security and its directly affiliated institutions 02 railway 03 traffic 04 forest 05 civil aviation 1 1 Beijing 12 Tianjin 13 Hebei 14 Shanxi 15 Inner Mongolia 2/kloc-. 35 Fujian 36 Jiangxi 37 Shandong 4 1 Henan 42 Hubei 43 Hunan 44 Guangdong 45 Guangxi 46 Hainan 50 Chongqing 5 1 Sichuan 52 Guizhou 53 Yunnan 54 Tibet 6 1 Shaanxi 62 Gansu 63 Qinghai 64 Ningxia 65 Xinjiang.

2. The alarm number is equivalent to the "ID card" of the alarm person. Only with an "ID card" can we enforce the law. Normally, an alarm will follow a policeman until he retires. Due to the need of work and convenient use, multiple number plates can be allocated when distributing alarm signals. There are no letters on the warning signs, but all numbers-there are six warning signs for public security, national security police, court and procuratorate bailiffs, and seven warning signs for prison reeducation-through-labor police.