The classification of letters and visits is 18.

Legal analysis: The legal channels for handling letters and visits complaints are divided into litigation, arbitration, administrative reconsideration, administrative ruling, administrative confirmation, administrative licensing, state compensation, administrative compensation, administrative payment, administrative coercion, specific types of complaints, technical appraisal, administrative supervision, labor inspection, administrative punishment, filing investigation, disciplinary inspection and information disclosure.

Legal basis: Article 9 of the Regulations on Letters and Visits stipulates that people's governments at all levels and departments of people's governments at or above the county level shall announce to the public the mailing address, e-mail, complaint telephone number, time and place of receiving letters and visits, ways to inquire about the progress and results of handling letters and visits and other related matters.

The working departments of the people's governments at all levels and the people's governments at or above the county level shall publish laws, regulations, rules, procedures for handling letters and visits and other related matters that provide convenience for letters and visits at their reception sites or websites.

Tenth city and county people's governments and their departments, township and town people's governments shall establish a petition reception day system for the heads of administrative organs, and the heads of administrative organs shall coordinate the handling of petitions. The complainant can complain to the person in charge of the relevant administrative organ on the published reception day and reception place.

The person in charge of the people's government at or above the county level and its working departments or their designated personnel may go to the petitioner's residence to talk with the petitioner to understand the outstanding problems reflected by the petitioner. Fourteenth letters and visits to the following organizations and personnel to reflect the situation, put forward suggestions and opinions, or dissatisfied with the duties of the following organizations and personnel, you can submit letters and visits to the relevant administrative organs:

(a) administrative organs and their staff;

(two) organizations authorized by laws and regulations to manage public affairs and their staff;

(3) Enterprises, institutions and their staff who provide public services;

(4) Personnel appointed or dispatched by state administrative organs in social organizations or other enterprises and institutions;

(5) Villagers' committees, residents' committees and their members.

For complaints that should be resolved through legal channels such as litigation, arbitration and administrative reconsideration according to law, the complainant shall submit them to the relevant authorities in accordance with the procedures prescribed by relevant laws and administrative regulations.