For a certificated Master Parachute Rigger applying for an additional type rating, what is needed?

For a certificated Master Parachute Rigger who is applying for an additional type rating, the requirement is a practical test for each type rating sought. This means that the individual must demonstrate their proficiency in handling the specific equipment and performing the necessary tasks associated with the new type of parachute or rigging system they are seeking to be rated on.

Practical tests are crucial in ensuring that a rigger possesses the necessary hands-on skills and knowledge to safely and effectively manage the rigging processes for different types of parachutes. This requirement reflects the emphasis on practical experience in the field of rigging, as it's not sufficient to simply have theoretical knowledge; actual performance ability is vital.

While the other options mention written tests or no tests, they do not align with the established protocols for obtaining additional ratings, which prioritize practical skills over theoretical knowledge or the absence of requirement altogether.