# CIP: Make security related governance parameters immutable

**URL:** <https://forum.celestia.org/t/cip-make-security-related-governance-parameters-immutable/1566>\
**Category:** Celestia Improvement Proposals (CIPs)\
**Created:** [February 6, 2024, 10:11pm UTC](https://forum.celestia.org/t/cip-make-security-related-governance-parameters-immutable/1566 "2024-02-06T22:11:03Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![caomingpei](https://forum.celestia.org/user_avatar/forum.celestia.org/caomingpei/32/982_2.png) [@caomingpei](https://forum.celestia.org/u/caomingpei)\
**Post date:** [February 6, 2024, 10:11pm UTC](https://forum.celestia.org/t/cip-make-security-related-governance-parameters-immutable/1566/1 "2024-02-06T22:11:03Z")

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This post is to discuss [docs: CIP for make security related governance parameters immutable by caomingpei · Pull Request #74 · celestiaorg/CIPs · GitHub](https://github.com/celestiaorg/CIPs/pull/74)

// Motivation: Addressing Inconsistency in Governance Parameters [celestiaorg/CIPs/pull#68](https://github.com/celestiaorg/CIPs/pull/68)

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**Author:** ![josh](https://forum.celestia.org/user_avatar/forum.celestia.org/josh/32/215_2.png) [@josh](https://forum.celestia.org/u/josh)\
**Post date:** [March 6, 2024, 4:20pm UTC](https://forum.celestia.org/t/cip-make-security-related-governance-parameters-immutable/1566/2 "2024-03-06T16:20:27Z")

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Notes from CDC 6:

1. `consensus.evidence.MaxAgeNumBlocks` is set at 120960 – this is currently based on an expected 15 second block time, but since blocks on Celestia are around 12 seconds, this time is more like 18 days. (Feedback from @ebuchman)
2. It _may_ be good to add more parameters to this CIP or in the future, make a similar CIP. After discussion in call, it seems that it is best to make a new CIP after CIP-16 is implemented.