Dependent Child Visa, also known as a dependent visa, is a type of visa that allows children under a certain age to accompany their parents who are either temporary or permanent residents of a country. The purpose of this visa is to allow families to stay together while the parents work or study in a foreign country. Here is a detailed explanation of the application process and requirements for a dependent child visa:

1. Eligibility: To be eligible for a dependent child visa, the child must be under a certain age, which varies depending on the country. In some countries, the age limit is 18, while in others, it may be 21 or even 25. The child must also be unmarried and financially dependent on their parents.

2. Relationship: The child must be the biological, adopted, or step-child of the parent who is the primary visa holder. In some cases, the child may also be a grandchild, niece, or nephew if they are the primary caregiver of the child.

3. Health Requirements: The child must meet the health requirements of the country they are applying to. This may include undergoing a medical examination and providing proof of vaccination.

4. Character Requirements: The child must also meet the character requirements of the country they are applying to. This may include providing a police certificate from their country of origin and undergoing a background check.

5. Financial Requirements: The parent who is the primary visa holder must demonstrate that they have sufficient financial resources to support the child while they are in the country. This may include providing bank statements, pay slips, or other proof of income.

6. Application Process: The application process for a dependent child visa typically involves submitting an application form, along with supporting documents such as the child's birth certificate, proof of relationship, and financial documents. The application may be submitted online or in person, depending on the country.

7. Processing Time: The processing time for a dependent child visa can vary depending on the country and the complexity of the application. It can take anywhere from a few weeks to several months.

8. Visa Validity: The validity of a dependent child visa is usually tied to the validity of the parent's visa. This means that the child's visa will expire when the parent's visa expires.

9. Travel: The dependent child visa allows the child to travel in and out of the country with their parent. However, they must always be accompanied by their parent when they travel.

10. Work and Study: In some countries, the dependent child visa holder may be allowed to work or study, but this will depend on the specific visa conditions.

In conclusion, a dependent child visa is a type of visa that allows children to accompany their parents who are temporary or permanent residents of a country. The application process involves meeting certain eligibility criteria, providing supporting documents, and paying a visa application fee. The visa holder must always be accompanied by their parent when they travel and may be allowed to work or study depending on the specific visa conditions.