Where should a single proprietorship architectural firm be registered?

A single proprietorship architectural firm should be registered with the Department of Trade and Industry (DTI) because this agency is responsible for the registration of sole proprietorships in the Philippines. The DTI provides the necessary documentation that establishes the identity of the business and its owner, allowing for legal recognition and operation.

Registering with the DTI also enables the firm to obtain a business name, which is crucial for marketing and operating under a specific brand. This registration process is tailored for single proprietors, compared to other types of business entities such as partnerships or corporations that would require registration with the Securities and Exchange Commission (SEC).

In the context of professional practice standards, staying compliant with local business registration regulations is essential for legal protection and credibility within the architectural profession.