Section 4.1: Office Correspondence (Memos, Letters, Circulars, Minutes)

Key Takeaways

  • Memoranda (Memos) are strictly internal instruments used for communication within the same Ministry, Department, or Agency (MDA).
  • Official letters are used for external communication with other MDAs or private bodies, and must always be signed on behalf of the Permanent Secretary.
  • Circulars are service-wide policy directives issued by central authorities like the OHCSF or FCSC, and carry binding regulatory power.
  • Meeting minutes require formal adoption by motion and seconding before being signed, while file minutes are internal sequential sheet entries used to route files.
Last updated: July 2026

Official Correspondence in the Civil Service

Official communication within the Nigerian Federal Civil Service is governed by strict rules, conventions, and hierarchies designed to ensure transparency, accountability, and a permanent record of governmental actions. Unlike private sector communication, which may favor speed and informality, civil service correspondence must adhere to the formats and procedures detailed in the Civil Service Handbook and Public Service Rules (PSR). This ensures that every decision can be traced back to its authority and that policies are implemented uniformly across all Ministries, Departments, and Agencies (MDAs). The main forms of official correspondence are Memoranda (Memos), Official Letters, Circulars, and Minutes.

Memoranda (Memos)

A Memorandum ("Memo") is the standard instrument for internal communication within an MDA to convey information, make proposals, or request approvals. Memos are never sent to external bodies or individuals.

Structure and Layout of a Memo
  • Letterhead: Contains the MDA's name, address, and the coat of arms.
  • Reference Number: Reflects the originating file (e.g., FME/S/102/Vol.I/45).
  • Sender/Recipient: Located at the top left. "From" and "To" fields use official designations (e.g., Director, HRM to Permanent Secretary), excluding personal names.
  • Date: Placed clearly (e.g., 17th July, 2026).
  • Subject Heading: A capitalized, underlined summary of the memo's purpose.
  • Body Paragraphs: Written in a formal, impersonal tone. Paragraphs are numbered sequentially, starting from 1.
  • Routing: Follows the hierarchical line of authority. A memo must be routed "Through" (Thru) immediate superiors rather than bypassing them. E.g., a Deputy Director routes through the Director to the Permanent Secretary. The intermediate officer adds recommendations on the file's minute sheet before forwarding.
  • Signature Block: Signed by the officer, with name and designation printed below.
Drafting Guidelines for Memos

When drafting a memo in the Nigerian civil service, the writer must follow specific conventions:

  1. Third-Person Tone: Memos should generally be written in the third person. Personal pronouns like "I" or "my" are avoided unless expressing personal views in rare circumstances.
  2. Contextual Background: The first paragraph must state the background of the issue, reference previous discussions or directives, and explain why the memo is being written.
  3. Action-Oriented Conclusion: The final paragraph must clearly state the action, approval, or directive being sought (e.g., "The Permanent Secretary is respectfully requested to approve the purchase...").

Official Letters

Official Letters are used for formal communication between an MDA and external bodies, such as other MDAs, state governments, private organizations, or individual citizens.

Key Elements of an Official Letter
  • Reference Number & Date: Crucial for tracking and retrieval.
  • Recipient Address: Full formal title and address (e.g., The Managing Director, ABC Logistics Ltd, Abuja).
  • Salutation: Formal "Sir" or "Madam". Personal names are avoided.
  • Subject Title: Capitalized and underlined, outlining the core subject.
  • Body: Formal, polite but firm. The first person singular ("I") is used on behalf of the Permanent Secretary (e.g., "I am directed to inform you...").
  • Complimentary Close: Standard "Yours faithfully".
  • Signature & Designation: Written on behalf of the Permanent Secretary (e.g., signed by the officer, followed by For: Permanent Secretary).
Demi-Official (D.O.) Letters

In contrast to standard official letters, Demi-Official letters are used when an officer wishes to write in a personal or informal capacity to another officer in the service regarding official matters. The salutation is "Dear [Name]" and the complimentary close is "Yours sincerely".

Circulars

Circulars are policy documents used to convey directives, rules, notices, or instructions to multiple departments or all MDAs simultaneously. They are typically issued by central coordinate bodies like the Office of the Head of the Civil Service of the Federation (OHCSF), the Federal Civil Service Commission (FCSC), or the Federal Ministry of Finance.

Rules and Characteristics of Circulars
  • Sequential Numbering: Circulars are numbered consecutively within a year (e.g., Circular No. HCSF/306/Vol.II/98).
  • Binding Policy: Directives carry regulatory weight across MDAs and must be filed in a dedicated Circular Book or Register at each registry upon receipt.
  • Distribution List: Lists target categories at the bottom (e.g., All Permanent Secretaries).

Minutes

Minutes have two distinct meanings in the civil service:

  1. Meeting Minutes: The official record of a committee or board meeting. Outline: Title, Attendance (Present, In Attendance, Apologies), Opening, adoption of agenda, reading and adoption of previous minutes, matters arising (where progress on previous decisions is tracked), main business, A.O.B., adjournment, and signatures (Chairman and Secretary).
  2. File Minuting: Written comments or recommendations on a folder's left-side "Minute Sheet" as it moves hierarchically. Minutes are numbered sequentially (e.g., "Page 1", "Minute 4"), cross-reference folios (e.g., "refer to letter on Folio 12"), and are signed and dated with the officer's name and rank.
Summary of Correspondence Types
Correspondence TypeScope of UsePrincipal AuthoritySignature Format
Memorandum (Memo)Internal (Within MDA)Department HeadName, Title
Official LetterExternal (To other bodies)Permanent SecretaryFor: Permanent Secretary
CircularMulti-departmental / Service-wideHead of Service (OHCSF)Name, Designation
MinutesRecords / File CommentsCommittee Chairman / Staff OfficerName, Title, Date
Test Your Knowledge

In the Nigerian Federal Civil Service, when a Deputy Director writes a Memorandum to the Permanent Secretary requesting financial approval, what is the correct routing procedure?

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B
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D
Test Your Knowledge

Which of the following describes the correct signature format for an official letter sent from a Federal Ministry to an external private contractor?

A
B
C
D
Test Your Knowledge

What is the correct administrative procedure for adopting previous minutes at the beginning of a formal civil service committee meeting?

A
B
C
D