[arin-ppml] Draft Policy ARIN-2023-1: Retire Slow Start

ARIN info at arin.net
Tue May 23 12:29:12 EDT 2023

On 18 May 2023, the ARIN Advisory Council (AC) accepted "ARIN-prop-319: Retire Slow Start" as a Draft Policy.


Draft Policy ARIN-2023-1 is below and can be found at:




You are encouraged to discuss all Draft Policies on PPML. The AC will evaluate the discussion to assess the conformance of this draft policy with ARIN's Principles of Internet number resource policy as stated in the Policy Development Process (PDP). Specifically, these principles are:


* Enabling Fair and Impartial Number Resource Administration

* Technically Sound

* Supported by the Community


The PDP can be found at:




Draft Policies and Proposals under discussion can be found at: https://www.arin.net/participate/policy/drafts/




Eddie Diego

Policy Analyst

American Registry for Internet Numbers (ARIN)



Draft Policy ARIN-2023-1: Retire Slow Start


Problem Statement:  


Section Slow Start has been a part of the NRPM for two decades, and successfully served to constrain the rate at which ARIN issued IPv4 address allocations to its members for many years. Following the exhaustion of the free pool, as well as the introduction and refinement of transfer policies, Slow Start has ceased to be applicable to the operations of ARIN's registration services. Staff has confirmed that this policy has not been used since 2018.


Policy statement: 


Retire Slow Start


Timetable for implementation: Immediate


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