> For the complete documentation index, see [llms.txt](https://support.gitcoin.co/gitcoin-knowledge-base/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://support.gitcoin.co/gitcoin-knowledge-base/about-gitcoin/policy/collection-levels-and-participation-policies.md).

# Collection Levels & Participation Policies

Think of the Platform as all of the grants that exist. If a grant is not allowed on the platform, it won't be approved for matching in any collection.

There are two primary types of collections. They

1. **Ecosystem** - Subset of "All Grants on Platform". Has it's own matching pool & policy.
2. **Discovery** - Subset of grants in an Ecosystem. Can be given its own matching if the ecosystem allows for it.
   * **Sub-Rounds** like Infra, Dapp, Community are Discovery collections in the Ethereum ecosystem which are allocated a portion of the total matching for the round.
   * **User Collections** can be made by any user to highlight grants they think need to be supported.