How do I find out if I fall under the "Derivation" for citizenship and if so how do I go about obtaining the citizenship document?

Go look in your parents' certificate of naturalization... if you are not 16 by the issued date, you are USC.

Thank you lawanwadee for your help. The answer is "yes", It does apply. Now where do I go from here.

You must submit form N-600 for certificate of naturalization. The fee is $460. Read the instructions carefully... good luck.

You have been more than helpful, thank you for your time.