The goods or service mark shall be considered compulsory for each good or service rendered, whether sold or offered for sale inside the country. The mark should be placed on the cover or, where impractical, on the container if the nature or characteristics of goods preclude placing the mark directly thereon. This requirement shall not be applicable to goods or services of which nature or characteristics preclude placing the mark thereon, and to the goods bearing the name of origin.

The provisions herein shall be made clear, when necessary, through the regulation.