The holder of this certificate may act as Master on board a vessel of not more than 500 gross tonnage engaged on a near coastal voyage, as Chief Mate on board a vessel of not more than 3000 gross tonnage engaged on a near coastal voyage and as Master of a vessel of any tonnage engaged on a sheltered waters voyage. There is an age requirement (20 years old) for this certification.
This page provides a guide to the examinations required for this certification, and those examinations are further discussed on their respective pages.
Be sure to also check:
License Requirements (refer to section 126)
Syllabus and Validity of Certificates (Page 128, Section 8)
SIM II, after obtaining SEN Level II
Oral examination on general seamanship, after meeting the other requirements of the Certificate.