Proposal Types
HIPs vs RFS HIPs
There are two types of proposals.
HIP (HAI Improvement Proposals)
Collateral (adding or removing additional collaterals to the HAI protocol ecosystem)
Governance Parameters
RFS HIP Proposals (Really Fucking Serious Proposal)
Changes to the PID Controller. This is serious, do not submit lightly.
The above proposal types are loosely related to constitutional and non-constitutional proposals. All RFS HIPs are constitutional whereas HIPs can be either constitutional or non-constitutional. For information about what constitutional and non-constitutional proposals are refer to here.