What is Ethereum Request for Comment (ERC)?

Ethereum Request for Comment (ERC) is a set of technical documentation used by Ethereum smart contract developers that outlines a specialized set of rules for the implementation of tokens that run on the Ethereum blockchain. The ERC token standard specification is used as a means to create token interoperability within the Ethereum network that allows users to send and receive all kinds of tokens between Ethereum addresses. Further, there are several distinct ERC tokenization standards, including ERC-1155 and ERC-721, with the most common being the ERC-20 tokenization standard.