The rule of documents refers to the systems and principles that need to be observed in the dealings of official organs at all levels.

To abide by this principle is conducive to the correct direction of official document delivery, the short and effective route, the avoidance of official document travel, and the avoidance of some documents entering unnecessary circulation process, and the suppression of the production of worthless documents.

The rule of writing stipulates the relationship between the authorities at all levels, that is, the relationship between official documents and organs at all levels. It is based on the organizational system, leadership relations and terms of reference of organs.

The working relationship between the agencies is determined by their respective organizational system or professional system ownership, status, responsibilities and scope of rights.

It has a decisive influence on the relationship between lines, and stipulates the basic direction of document delivery.

There are several types of work relations between organs: first, there is a relationship between leadership and being led by the higher authorities and subordinate organs in the same organization system.

The second type is that there is guidance and guidance between the superior business department and the subordinate business department in the same professional system.

The third category is the parallel relationship between the same level organs of the same organization system or professional system.

Such as the people's governments of all provinces, autonomous regions and municipalities directly under the central government.

In the fourth category, no matter between the organs of the same organization system or professional system, regardless of the level, they are not affiliated.

For example, between military organs and local people's governments at all levels.

According to the different working relationships between the official documents and the receiving organs, the official documents can be divided into ascending, descending and parallel texts.

Uplink and downlink mainly exist in the first and second types of work relations. The uplink refers to the official documents sent by the subordinate organs to the higher authorities, such as reports and instructions. Contrary to the downside, it is the official documents sent by the higher authorities to the lower levels, such as approval, instructions, etc.

Parallel texts exist in the above third and fourth types of relations. The same level organs and non subordinate organs send documents to each other in parallel, such as letters.