---
# System prepended metadata

title: 'MIP4c4-SP3: Obsolete MIP Removal (MIP23, MIP28)'

---

# MIP4c4-SP3: Obsolete MIP Removal (MIP23, MIP28)

## Preamble

```
MIP4c4-SP#: 3
MIP to be removed: MIP23, MIP28
Author(s): @blimpa
Contributors: @GovAlpha-Core-Unit
Tags: mip-removal
Status: RFC
Date of Removal Submission: 2022-11-17
Date of ratification: <yyyy-mm-dd>
```

## Specification

### Motivation

[MIP23: Domain Structure and Roles](https://mips.makerdao.com/mips/details/MIP23) and [MIP28: Operational Support (OS) Domain Definition](https://mips.makerdao.com/mips/details/MIP28) were passed towards the end of 2020. The Domain framework has since been superseded by the Core Unit Framework and all necessary transitions from the former to the latter are long finished. Therefore, these MIPs no longer serve any purpose in MakerDAO and should be marked as Obsolete in the interest of keeping the MIPs Framework slim and reflective of the status quo.

### Removed MIPs

- [MIP23: Domain Structure and Roles](https://mips.makerdao.com/mips/details/MIP23)
- [MIP28: Operational Support (OS) Domain Definition](https://mips.makerdao.com/mips/details/MIP28)
 
### Removal Pull Request

- TBD

### Relevant Information

- N/A