Where must polywrap used for flat-size mailings be submitted?

The polywrap used for flat-size mailings must be submitted to Product Classification because this department is responsible for defining the specifications and classification of mail products. Ensuring compliance with postal regulations and standards is critical, particularly for bulk mailing and promotional materials that utilize polywrap.

Product Classification evaluates whether the polywrap meets the necessary requirements and can help in determining proper handling and processing methods. This tailored submission process is designed to streamline how materials are classified for distribution, ensuring they conform to postal service guidelines.