# RFC Full Form: Request for Comments (Meaning at Work)

> RFC stands for Request for Comments.

- **Term:** RFC
- **Full form:** Request for Comments
- **Part of speech:** abbreviation
- **Pronunciation:** /ɑːr ef siː/
- **English level (CEFR):** B2
- **Register:** Neutral, Both
- **Region:** US and UK
- **Topic:** [Agile and project terms](https://app.speaktechenglish.com/learn/topics/agile-project-management-terms.md)
- **Lesson:** https://app.speaktechenglish.com/learn/rfc
- **Last updated:** 2026-10-27

## Meaning

RFC stands for Request for Comments. It is a formal document or proposal that engineers create to discuss a significant technical decision or design before implementation, inviting team feedback and suggestions.

An RFC is a structured way to propose changes, new features, or architectural decisions in a tech team. Instead of making decisions in isolation, engineers write an RFC document outlining the problem, proposed solution, tradeoffs, and implementation plan. The team then reviews and comments on the RFC, often in a dedicated meeting or discussion thread, to catch issues early and build consensus before coding begins. RFCs are commonly used in larger teams and companies where coordination is critical. The process encourages knowledge sharing, prevents duplicate work, and surfaces concerns from different perspectives (security, performance, UX). Once an RFC is approved through discussion, it becomes a reference document for the actual implementation. The term originated from the internet standards community (IETF), but tech companies have adopted it widely for internal design decisions. Some teams use RFCs for major features; others use them for any significant change.

## When you hear it

Engineers submit an RFC before starting work on a major feature so the team can discuss tradeoffs together.

## Examples

- **in a standup:** "I started an RFC for the database migration. Please review it and add your comments by Friday."
- **in an email:** "Before we redesign the authentication system, let's publish an RFC to gather feedback from the security team."
- **in a code review:** "This change is large enough that it should have gone through the RFC process first."

## What native speakers say

- "We should RFC this architecture change before we start coding."
- "Can you open an RFC for the new API design?"
- "I left comments on your RFC in the shared doc."

## Common mistakes

- ✗ "We RFC this change yesterday, so let us start coding now." → ✓ "We published an RFC for this change yesterday, so let's start coding now." (RFC is not a verb meaning to approve; use 'publish' or 'open' instead. RFC is the document or process.)
- ✗ "Send me an RFC if you need my approval on this feature." → ✓ "Send me an RFC if you want feedback and discussion on this feature proposal." (An RFC invites discussion and consensus, not a quick approval. RFCs are for significant decisions, not minor requests.)
- ✗ "I will RFC that bug fix tomorrow." → ✓ "I will open an RFC for the refactoring plan tomorrow." (Small bug fixes do not require an RFC. Use RFC for major features, architecture changes, or decisions affecting multiple teams.)

## Be careful

RFC is not a request for permission but a formal proposal inviting discussion and feedback. Do not use it for quick approvals or urgent decisions.

## Word forms

| Part of speech | Word | Example |
| --- | --- | --- |
| noun | RFC | The RFC for the new caching strategy is ready for review. |
| noun | to open/publish/submit an RFC | We plan to open an RFC next week for the microservices migration. |


## Collocations

- **open an RFC**: to initiate or create a new RFC document for team discussion
- **submit an RFC**: to formally present an RFC for review and feedback
- **review an RFC**: to read and provide comments on a proposed RFC
- **approve an RFC**: to sign off on an RFC after discussion, clearing it for implementation
- **RFC feedback**: comments and suggestions from team members on an RFC

## Synonyms

- **design document**: broader term; an RFC is a specific type of design document with a defined review process
- **proposal**: more general; an RFC is a formal, structured proposal in tech
- **specification**: RFC specifies what will be built, but usually at a higher level than a full technical spec

## Opposites

- implementation
- code review

## Practice

This lesson has 4 practice exercises with instant feedback on the page: https://app.speaktechenglish.com/learn/rfc

## FAQ

### What does RFC stand for?

RFC stands for Request for Comments. In software engineering, it is a formal document proposing a significant technical change or feature, designed to invite feedback and discussion from the team before implementation.

### When should I write an RFC?

Write an RFC for major architectural changes, significant new features, refactoring efforts that affect multiple systems, or any decision that impacts multiple teams or the product roadmap. Do not use RFC for small bug fixes or routine tasks.

### What should an RFC include?

A good RFC typically includes: a clear problem statement, the proposed solution, alternative approaches considered, tradeoffs and risks, implementation timeline, and impact on other systems. The exact format varies by company, but the goal is always to enable informed discussion.

### Is RFC formal or informal?

RFC is neutral to formal. It is a structured, professional process used in technical discussions, but the tone of discussion can be collaborative and informal. The document itself is formal, but the feedback process often encourages open dialogue.

### How long should an RFC be?

RFCs vary in length depending on complexity. Simple proposals might be 1-2 pages; complex architectural changes could be 5-10 pages. The goal is to provide enough detail for informed feedback without being overwhelming.

### What happens after an RFC is approved?

After an RFC is approved through discussion and consensus, the engineering team begins implementation. The RFC becomes a reference document throughout the project, and the final implementation is often compared against the RFC to ensure alignment.


## Related

- [code review](https://app.speaktechenglish.com/learn/code-review.md)
- [pull request](https://app.speaktechenglish.com/learn/pull-request.md)
- [stakeholder](https://app.speaktechenglish.com/learn/stakeholder.md)
- [consensus](https://app.speaktechenglish.com/learn/consensus.md)
- Full glossary: https://app.speaktechenglish.com/learn.md
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