Legal analysis: the applicant should carry a resident identity card; Those under the age of 16 should also submit proof of guardianship (such as birth certificate, household registration book, etc.), as well as identity certificates and copies of guardians' ID cards or passports, and other materials to the entry-exit reception hall of Luoyang Public Security Bureau, Henan Province (address: entry-exit reception hall of Luoyang Public Security Bureau, Taikang Road, Luolong District, Luoyang City, Henan Province), or to the entry-exit halls of various districts. Vietnamese visas can be handled at the Vietnamese Consulate in China.

Legal basis: Passport Law of the People's Republic of China.

Article 5 If a citizen goes abroad for non-official reasons such as settling in a foreign country, visiting relatives, studying, obtaining employment, traveling and engaging in business activities, he/she shall apply for an ordinary passport to the exit-entry administration of the public security organ of the local people's government at or above the county level where his/her household registration is located.

Article 6 When applying for an ordinary passport, a citizen shall submit his/her resident identity card, household registration book, recent bareheaded photos and relevant materials on the reasons for applying. State functionaries who leave the country to apply for an ordinary passport for reasons specified in Article 5 of this Law shall also submit relevant supporting documents in accordance with relevant state regulations.

The exit-entry administrative organ of the public security organ shall issue an ordinary passport within fifteen days from the date of receiving the application materials; If it does not meet the requirements, it shall explain the reasons in writing and inform the applicant of the right to apply for administrative reconsideration or bring an administrative lawsuit according to law.

In remote areas or areas with inconvenient transportation or due to special circumstances, passports cannot be issued on schedule, and the issuance time can be extended to 30 days with the approval of the person in charge of the passport issuing organ.

If a citizen requests urgent handling due to reasonable emergency, the exit-entry administration organ of the public security organ shall handle it in time.