In the Subprofessional Level of the Career Service Examination, Clerical Ability replaces the Analytical Ability section. Among the most heavily weighted topics in this section is Alphabetical Filing.
Questions will present four or five names of individuals, government bureaus, or companies, and ask: "Which name should be filed SECOND?" or "What is the correct alphabetical sequence?".
The Civil Service Commission adheres to standardized library and office records filing rules (ALA Rules for Filing Catalog Cards). Understanding these five core rules guarantees you 100% accuracy on every filing question.
Rule 1: Order of Individual Units (Indexing Order)
When indexing personal names, transpose the order as follows:
- Unit 1 (Primary Unit): Surname / Last Name
- Unit 2 (Secondary Unit): Given Name / First Name
- Unit 3 (Tertiary Unit): Middle Name or Middle Initial
| Original Name | Unit 1 (Surname) | Unit 2 (Given Name) | Unit 3 (Middle) |
|---|---|---|---|
| Juan Carlos Mercado | Mercado | Juan | Carlos |
| Maria Santos Cruz | Cruz | Maria | Santos |
Rule 2: "Nothing Comes Before Something"
A single initial or a shorter name without a middle initial precedes a longer name that starts with the same letters:
- Santos, E. (Nothing comes before...)
- Santos, Eduardo
- Santos, Eduardo A.
- Santos, Eduardo Antonio
Rule 3: Surnames with Prefixes (De, Dela, Delos, San)
This is the #1 most tested trap on the Subprofessional exam.
In Civil Service alphabetical filing, prefixes such as D', Da, De, De la, Dela, Del, Delos, Des, Di, Du, Fitz, La, Las, Le, Les, Los, M', Mac, Mc, O', San, Santa, Van, Von are considered an integral part of the surname and filed letter-by-letter as ONE single word, ignoring spaces, capitalization, and punctuation!
Compare how the letters sequence when treated as one continuous word:
- De la Cruz, Juanita M. → treated as
delacruz(d-e-l-a-c...) - Dela Rosa, Juanita B. → treated as
delarosa(d-e-l-a-r...) - De Leon, Juanita K. → treated as
deleon(d-e-l-e-o...) - Delos Santos, Juanita A. → treated as
delossantos(d-e-l-o-s...)
Notice that De la Cruz comes FIRST because delac... precedes delar.... De Leon comes THIRD because dele... comes after dela....
Rule 4: Hyphenated Surnames and Compound Names
Hyphenated surnames of individuals (such as compound married names or family surnames) are treated as one single indexing unit, ignoring the hyphen:
- Reyes-Aquino, Patricia → indexed as
REYESAQUINO, PATRICIA - Reyes, Patricia → indexed as
REYES, PATRICIA(filed before Reyes-Aquino!)
Rule 5: Seniority Designations (Jr., Sr., II, III)
Seniority designations like Junior (Jr.), Senior (Sr.), II (Second), III (Third) are treated as the final indexing unit. When identical names appear, file them in chronological order:
- Ramos, Vicente, Sr.
- Ramos, Vicente, Jr.
- Ramos, Vicente, II
- Ramos, Vicente, III
Rule 6: Government Bureau and Agency Filing
Government offices and bureaus are indexed under their jurisdiction / principal governing entity first, followed by the specific department name:
• Original: Department of Education
• Indexed Order: Philippines, Education (Department of)
7. Practice Test Drill: Identify the Filing Order
Try answering this actual CSC-style question:
Which of the following names should be filed SECOND?
A. De la Cruz, Juanita M.
B. Dela Rosa, Juanita B.
C. De Leon, Juanita K.
D. Delos Santos, Juanita A.
Correct Answer: B (Dela Rosa, Juanita B.)
Rationale: Letter-by-letter as one word: 1st is De la Cruz (d-e-l-a-c), 2nd is Dela Rosa (d-e-l-a-r), 3rd is De Leon (d-e-l-e-o), 4th is Delos Santos (d-e-l-o-s). Therefore, Dela Rosa is filed second.
Master Clerical Ability & Alphabetical Filing
Practice interactive alphabetical filing, spelling, and office procedures questions with detailed explanations on Civil Service Reviewer 2027.