Which form is used to file a formal complaint?

The correct form used to file a formal complaint is DA Form 7279. This form is specifically designed for registering complaints under the Army's equal opportunity program. It serves as an official document that allows soldiers or civilians to express grievances related to discrimination or harassment, ensuring that such issues are addressed appropriately within the chain of command.

The use of DA Form 7279 is critical in maintaining a fair and just workplace environment, as it initiates the complaint process and helps the Army to track and resolve these issues effectively. The form captures essential details about the nature of the complaint, the parties involved, and any other relevant information that is required for proper processing.

In contrast, the other forms listed serve different purposes and are not suited for filing formal complaints. For instance, DA Form 4950 is used for the Army's Sexual Harassment Complaint Form, DA Form 2025 is generally for the Army's Maintenance Work Order, and DA Form 1030 is utilized for the Army's Growth and Development Plan. Each form has its specific applications, which is why DA Form 7279 is the only appropriate choice for this context.