Have you ever wondered how the Ethereum blockchain is upgraded or how developers create new tokens and smart contracts? Two essential concepts make this possible: EIP and ERC. These acronyms represent foundational processes that drive innovation and standardization across the Ethereum ecosystem. EIPs (Ethereum Improvement Proposals) suggest changes to the core protocol, while ERCs (Ethereum Requests for Comment) define standards for tokens and smart contracts. Together, they help shape Ethereum’s evolution and usability.
In this article, we’ll explore what EIPs and ERCs are, how they work, and why they matter to developers, users, and the broader blockchain community.
What Is an EIP?
EIP stands for Ethereum Improvement Proposal. It is a formal method for members of the Ethereum community—including developers, researchers, and users—to propose enhancements or modifications to the Ethereum network. An EIP outlines the rationale, technical specifications, and potential impact of a suggested change.
EIPs can address a wide range of topics, such as upgrades to the Ethereum Virtual Machine (EVM), client software improvements, or adjustments to the consensus mechanism. Once submitted, an EIP undergoes community review, discussion, and refinement. If accepted, it may be implemented in a future network upgrade.
This open and collaborative process ensures that Ethereum continues to evolve in a decentralized and community-driven manner.
The EIP Submission and Review Process
Creating an EIP involves drafting a detailed proposal that includes the technical details, motivations, and possible consequences of the change. This document is submitted via a pull request to the official Ethereum GitHub repository.
The Ethereum community then reviews the proposal. Developers, miners, node operators, and other stakeholders debate its merits, potential risks, and compatibility with existing systems. Proposals may be accepted, rejected, or sent back for revisions. Accepted EIPs are assigned a unique number and become part of Ethereum’s official improvement track.
What Is an ERC?
ERC refers to Ethereum Request for Comment. Unlike EIPs, which focus on protocol-level changes, ERCs standardize applications built on Ethereum—specifically tokens and smart contracts.
An ERC defines a set of rules and functions that developers must follow to ensure compatibility and interoperability between different projects. For instance, a token standard like ERC-20 specifies how fungible tokens should be created, transferred, and managed.
These standards make it easier for wallets, exchanges, and dApps to support new tokens without custom integrations. Well-known examples include ERC-20 (for fungible tokens), ERC-721 (for non-fungible tokens or NFTs), and ERC-1155 (for multi-token contracts).
The ERC Lifecycle
The process for creating and approving an ERC is similar to that of an EIP. A developer or community member drafts a proposal and submits it for public review. After feedback and potential revisions, the proposal may be finalized and assigned an ERC number.
However, unlike EIPs—which are adopted at the protocol level—ERCs are standards that individual projects voluntarily implement. Widespread adoption depends on how useful and well-designed the community perceives a standard to be.
Key Differences Between EIP and ERC
Although EIPs and ERCs are both proposal mechanisms within the Ethereum ecosystem, they serve different purposes:
| Basis | ERC | EIP |
|---|---|---|
| Full Form | Ethereum Request for Comment | Ethereum Improvement Proposal |
| Primary Focus | Token and smart contract standards | Core protocol upgrades and changes |
| Examples | ERC-20, ERC-721, ERC-1155 | EIP-1559, EIP-4844 |
| Proposal Authors | Developers and community members | Developers and researchers |
| Purpose | Standardization and interoperability | Protocol evolution and optimization |
| Adoption Mechanism | Voluntary use by projects | Integrated into network upgrades |
Why EIPs and ERCs Matter
EIPs and ERCs enable Ethereum to grow in a structured yet flexible way. EIPs help the network scale, improve security, and introduce new features—such as EIP-1559, which reformed Ethereum’s fee market.
ERCs, on the other hand, foster innovation at the application layer. By providing clear guidelines, they reduce development friction and encourage the creation of interoperable products and services.
Both processes rely on community input, reflecting Ethereum’s commitment to decentralized governance.
Frequently Asked Questions
What is the main difference between EIP and ERC?
EIPs are proposals for changing the Ethereum protocol itself, such as its consensus rules or virtual machine. ERCs are application-level standards that define how tokens or smart contracts should be designed to ensure compatibility across the ecosystem.
Can anyone submit an EIP or ERC?
Yes. Both processes are open to participation. However, proposals must be well-researched, clearly written, and technically sound to gain community support.
How long does it take for an EIP or ERC to be approved?
The timeline varies. Some proposals move quickly through discussion and testing, while others may take months or even years. Complex or controversial changes often require extensive review.
Are ERC standards mandatory?
No. ERC standards are not enforced by the protocol. Developers choose to adopt them based on their benefits, such as easier integration with wallets and exchanges.
What is an example of a impactful EIP?
EIP-1559 introduced a new transaction fee mechanism that significantly improved user experience and initiated Ethereum’s shift toward deflationary economics.
How can I stay updated on new EIPs and ERCs?
You can follow discussions on Ethereum’s GitHub repository, forums, and developer channels. Many blockchain news outlets also cover major upgrades and new standards.
Final Thoughts
EIP and ERC are core components of Ethereum’s governance and innovation machinery. EIPs enable foundational upgrades, while ERCs help standardize the tools and tokens built on the network. Both ensure that Ethereum remains adaptive, secure, and developer-friendly.
For those interested in contributing, the door is open—anyone with a valuable idea can submit a proposal and help shape the future of blockchain technology. 👉 Explore more blockchain development strategies