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ResearchResearch ResourcesZ133 Public Review

Public Review of ANSI Z133-2017 Proposed Revisions

Z133 Safety Standard

The first public review and comment period on the proposed draft revision to the ANSI Z133-2017 standard is open until 4 September 2023.

View the proposed draft revision to the ANSI Z133-2017 standard.

View a version with tracked changes from the 2017 edition.

We encourage anyone with comments to submit them via this webform. All comments should specify the subsection in question, indicate the comment, provide revised wording of the subsection, and include a rationale for the change.

Every comment will be brought to the consideration of the Z133 Committee in its October 2023 meeting. Following that meeting, by end of December 2023, you will receive a formal response from the committee on its decisions regarding your comment(s).

For incomplete or unintelligible submissions, ISA will reach out by email to the contact provided to resolve any questions on the submission. If no response to ISA's queries is received within 10 business days, the incomplete or unintelligible comments may be discarded and may not receive a committee response.

The email contact for comments, questions, or concerns, is z133@isa-arbor.com. In case of any difficulty, you may also reach out by phone to +1 678.367.0981 x226. Please leave a voicemail if not immediately answered.

More about the Z133 Proposed Revisions and the Public Review

The American National Standard for Arboricultural Operations—Safety Requirements (commonly referred to as the Z133 standard) is a United States safety standard for use across the arboriculture industry. The current edition of the Z133 was published in 2017. Since that year, the Z133 Committee has drafted revisions to refine the standard, ensure better safety outcomes, and keep pace with developments in the industry.

To ensure that the revision process is open to all parties who are directly and materially interested in the standard, the Z133 Committee’s proposed draft is submitted to a public review and comment period. This crucial step ensures that every perspective is considered, and it often results in substantive changes and improvements to the committee’s draft.