SRDC is reserves and OCS is Active duty. So if you are looking at reserves then the program you want is SRDC. If you are looking to join Active Duty, you are looking at OCS. For OCS you can not have reached your 35th birthday by class convene date. IF you have a degree you do not have to wait for E5, if you have at least 2 years complete you can apply to the program when E5.
SRDC is a bit older, you cannot have reached your 37th by class convene date.
Be at least an E-5, or an E-4 above the cut on the E-5 advancement eligibility list, or have been certified by their commanding officer for placement on a supplemental advancement list, and
b. Have successfully completed two years (60 semester hours or the equivalent quarter hours) at an accredited degree granting college or university. CLEP examinations (with the ACE recommended score for exams taken in or prior to May 1986 and a score of at least 421 for exams taken after May 1986) may be substituted for up to 30 semester hours. Note: The baccalaureate degree requirement is reduced by 60 semester hours. Since military service is the factor used to reduce the requirement, military service credits may not be used to fulfill the remaining 60 semester hour requirement.
These poor, plain men, dwellers upon the lonely sands of Hatteras, took their lives in their hands, and, at the most imminent risk crossed the most tumultuous sea…and all for what? That others might live to see home and friends. — Annual Report of the U.S. Life- Saving Service, 1885 Recruiting Website Read here for answers to the most often asked questions about joining the Coast Guard!