Number of hours worked by non-employee volunteers who supported the organization during the reporting period.
Number of hours worked by non-employee volunteers who supported the organization during the reporting period.
Organizations should footnote all assumptions used.
This metric is intended to capture the number of hours worked by volunteers who are not employees of the organization.
Organizations interested in reporting information on employee volunteer hours can refer to Community Service Hours Contributed (OI8429).
Metrics identified as "cross-category" are those that are relevant to any IRIS+ Impact Category or Impact Theme (i.e., these metrics are not specific to any particular industry/category or theme).
June 2025 - IRIS+ v5.3b Released (current version)
No change.
December 2024 - IRIS+ v5.3a Released
No change.
June 2022 - IRIS+ v5.3 Released
Immaterial change. Minor revision to usage guidance for clarity.
May 2021 - IRIS+ v5.2 Released
No change.
January 2020 - IRIS+ v5.1 Released
No change.
May 2019 - IRIS+ v5.0 Released
No change.
March 2016 - IRIS+ v4.0 Released
Immaterial change. Minor revision to definition language for clarity.
March 2014 - IRIS+ v3.0 Released
No change. Minor revision to definition language for clarity.
November 2011 - IRIS+ v2.2 Released
No change.
February 2011 - IRIS+ v2.1 Released
No change.
September 2010 - IRIS+ v2.0 Released
New metric. Volunteer Hours Worked (OI1166) was developed via the IRIS Taxonomy Development Group.