I recently change my name.  Under my U.S. Citizenship is my old name. 
I change my last name because I just discovered that my real ancestral
name.  I change my name after a few months that I obtained my U.S.
citizenship.  I have been consistly using my new name for about 4
years.  I recently apply for my U.S. passport under my new name and I
was denied beacuse the name I put on the application is under my new
name.  The passport agency said that the name on citizenship does not
match my new name.  They gave me 90 days to re-submit myt application
with proof of my name change, but the 90 days has passed already and I
have not yet submit the papers because I was confused.  I change my
name by using the USAGE METHOD.  For now, the passport agency is
holding my U.S. citizenship.  I sent in my U.S. citizenship through
United States Postal Service when I apply for my U.S. Passport.  Is it
possible for me to get back my U.S. citizenship to reapply again? 
What are my options to get my new change recognized.  Do I have to
wait for 5 years?  What is the fastest way to get new name recognized?
 Please advise..

< The way that you have changed your name is perfectly acceptable
under U.S. law. However the procedure that you used to get a new
passport was incorrect. As your name was changed by usage, the correct
procedure is to apply in person for a new passport.

The fact that you did not respond to the request of documents within
90 days makes it likely that your application has been considered
abandoned. Your first course of action should be to contact the
passport agency to try to get back your documents. If this fails then
you will need to apply for a replacement of your certificate of
citizenship. You can apply for a replacement by completing form N565.
A link is given below where you can find instructions for getting a
replacement certificate of citizenship.

When you have your certificate of citizenship you will be able to
apply for your passport. To get your passport in your new name, it is
necessary to make an application in person by going to one of the
passport agencies. A link is given below where you can find the
location of the nearest passport office.

Make sure you have the necessary forms of identity, passport
photographs and the passport fee with you. The link to passport
services and information details what forms of identity are
acceptable.

You will need to complete a passport application form which can be
downloaded from the site shown below or alternatively one can be
obtained from any passport agency. Do not sign the DS-11 application
form until the passport agent tells you to.>

<Instructions for getting a replacement certificate of citizenship and
form N565.>
<http://www.usais.org/cz.htm>

<Passport services and information.>
<http://travel.state.gov/passport_services.html>

<How to apply for a U.S. passport in person. From here you can
download an application form.>
<http://travel.state.gov/passport_obtain.html>

<To find the location of the nearest passport office.>
<http://iafdb.travel.state.gov/>

<Passport fees.>
<http://travel.state.gov/newfees.html>

<Information on getting your passport in a hurry.>
<http://travel.state.gov/passport_expedite.html>


<Search strategy:>

<us passport>
<://www.google.com/search?hl=en&lr=&ie=ISO-8859-1&q=us+passport>

<usais>
://www.google.com/search?hl=en&lr=&ie=ISO-8859-1&q=usais>

<I hope this helps.>

Very Helpful.  Especially those links to the passport websites.