It is the selective service designation for "Fit for duty".
While a form of Selective Service registration remains a requirement in the United States for males reaching the age of 18, the draft (actually mandatory military service) ended in the US in 1973.
most selective
Go to your local Secretary of State office they should have a form you fill out. OR You could do it online via the Selective Service's website. All you need is your full name, DOB and SSN, registration is instant. sss(DOT)gov
If you have signed up for Selective Service, you would know it. You would remember going to the post office and picking up the packed, it's small, but you would remember. You would remember filling in your information: name, address, SSN, birth date, etc. You would remember mailing it, and you would remember receiving your confirmation letter. If you recall none of these, then it is likely it never happened and you are not registered with Selective Service. You can register on-line at this site. http://www.sss.gov/
The meaning of preform is exactly as it looks - "pre form" - or to form in advance. Perform is to complete an action. So to answer your question, you would perform a service.
The analogy answer to "sit is to seat as serve is to" is "service." In this analogy, "sit" is the base form of the verb, while "seat" is the corresponding noun form. Similarly, "serve" is the base form of the verb, and "service" is the corresponding noun form. The relationship between the pairs is that the verb denotes the action, while the noun represents the result or object of that action.
Your army service certificate number can typically be found on your military discharge paperwork, such as your DD Form 214. If you no longer have this document, you can request a copy from the National Archives or your respective military branch's records department.
selective immunoglobulin A deficiency disease.
Inbreeding
Sign the irrevocable consent to legal service action of the application form
A DD Form 93 is a Department of Defense form used to designate beneficiaries for a service member's death gratuity, unpaid pay and allowances, and unpaid travel allowances. It is important for service members to keep this form up-to-date to ensure their wishes are honored in case of death.