Please explain in step by step format the procedure, Just to make things easier for others to understand.
 
e.g. 
1. Obtain the proof of birth from the Hospital.
2. Name your child. 

The following documents shall be submitted to the Local Civil Registrar for entry in the Register of Court Decrees:

• Four (4) copies of judicial decree of adoption to be distributed as follows: first copy to the registrant, second copy for the local civil registrar making the entry, third copy to the local civil registrar of the place where the birth of the child was originally registered and the fourth copy to the Office of the Civil Registrar-General.
• Four (4) copies of the birth certificate of the birth certificate of the adopted to be distributed in accordance with the immediately preceding paragraph (OCRG Circular No. 90-2 dated 28 March 1990).

NSO Field Office - Cavite
2nd Floor Government Center Building
Provincial Capitol Grounds, San Agustin
Trece Martirez City, Cavite 4109
Telephone: (046) 514-0501
(046)686-5728
Fax: (046) 514-0445 / 419-0146

Census Serbilis Centers

Provide eligibility criteria's for going through this procedure.

Explain the fees structure which is required for obtaining the certificate/document.

Explain the time until which the certificate/document is valid.
e.g. Birth Certificate Valid Forever

Please attach documents which can be used by people who would like to follow this procedure.    

Please attach sample completed documents which would help other people who would like to follow this procedure.    

Please explain the processing your application.    

Videos explaining the procedure or to fill the applications. 
Attach videos using the following tag <&video type="website">video ID|width|height<&/video&> from external websites.
Please remove the "&" inside the tags during implementation.
Website = allocine, blip, dailymotion, facebook, gametrailers, googlevideo, html5, metacafe, myspace, revver, 
sevenload, viddler, vimeo, youku, youtube
width = 560, height = 340, Video ID = Can be obtained from the URL of webpage where the video is displayed.
e.g In the following url "http://www.youtube.com/watch?v=Y0US7oR_t3M" Video ID is "Y0US7oR_t3M". 

The following requirements shall be complied with by the concerned parties:

• Certification of registration of the adoption decree to be issued by the civil registrar of the city or municipality where the adoption decree was recorded;
• Authenticated copy of the adoption decree bearing registry number and date of registration;
• Copy of the registered Certificate of Live Birth of the Adopted child. If the birth of the adopted child was not previously registered, the same should first be recorded in the civil registrar with the child's natural parents under the rules governing delayed registration of birth;
• If the adopted child was a foundling, the document to be amended is his Certificate of Live Birth based on the available information which may be obtained from the adopting parents, or from reliable and competent sources;
• The amended Certificate of Live Birth shall be attached to the original Certificate of Live Birth of the child which is filed at the office of the Civil Registrar; and
• When the interested party requests a copy of the amended Certificate of Live Birth, the copy to be issued shall not bear the annotation or any remark that will disclose the facts of the adoption.

A list which displays the kind of information which is required to complete the procedure.
e.g.
1. Date of Birth.
2. City or County of Birth.

Adoption may be considered a process "to take into one's family through legal means and raised as one's own child". (The Groiler International Dictionary, vol. 1, 1981 : Houghton Mifflin Company).

Adoption is also defined as "a judicial act which creates between two persons a relationship similar to that which results from legitimate paternity and filiation" (A Valverde 473, quoted in Prasnick vs. Rep. of the Phil. 665). (Civil Law Reviewer by Desiderio P. Jurado, 1882 Twelfth Edition with Supplement published by National Book Store, Inc.)

Rule 1 of OCRG Circular No. 90-2 dated 28 March 1990 likewise define Adoption as a legal process pursuant to P.D. No. 603, as amended by Executive Order No. 209 (Family Code of the Philippines) in which a child's legal right and duties toward his natural parents are terminated and similar rights and duties toward his adoptive parents are substituted.

Adoption is always a juridical act (Lazatin v. Campos, 92 SCRA 250) and it cannot be granted administratively. And because there can be no valid adoption without a court decree granting the same, a mere agreement of adoption between the adopters and the parents of the child is not a valid adoption (Ynigo v. Republic, 95 Phil. 244), nor the mere fact that the child has lived with the alleged adopter who had treated him like his own child sufficient to establish a valid adoption between the alleged adopter and the child (Lazatin v. Campos, 92 SCRA 250).

Enter other informations which might help

Please explain what are other uses of obtaining this document/certificate.
e.g. Birth Certificate can be used as proof of identity.

Place some external links which might help

Civil Registration Procedure http://www.census.gov.ph/civilregistration/civil-registration-procedure