Honolulu Open Data Portal Requirements & API Guide

Technology and Data Hawaii 3 Minutes Read ยท published February 09, 2026 Flag of Hawaii

Honolulu, Hawaii maintains an open data portal and related policies for publishing municipal datasets; this guide explains the portal requirements, API access, and how city rules affect data publishers. Use the official open data pages and municipal code when preparing datasets, submitting APIs, or responding to compliance notices. Below you will find enforcement pathways, common violations, actionable steps to publish or appeal, and links to the city sources cited for requirements and contacts.

Penalties & Enforcement

The City and County of Honolulu publishes its open data portal and guidance through the Department of Information Technology and the data portal itself; specific penalty schedules for open-data noncompliance are not stated on the cited pages. For policy, hosting, dataset publication and API access consult the Department of Information Technology and the official portal directly Department of Information Technology[1] and data.honolulu.gov[2]. For municipal code requirements that could affect data publication (records, privacy, record retention, and disclosure), consult the Honolulu municipal code Honolulu Revised Ordinances[3].

If a summons or administrative notice is issued, the notice should state appeal steps and timelines.
  • Fines: not specified on the cited pages for open-data publication; consult municipal code sections cited above for financial penalties that may apply to records violations.
  • Escalation: first, repeat, or continuing-offence escalation is not specified on the open-data pages; escalation terms are determined by the applicable ordinance or administrative order.
  • Enforcer: Department of Information Technology (policy/hosting) and the enforcing department named in any municipal notice; legal enforcement may involve the City Prosecutor or civil enforcement under the municipal code.
  • Inspections & complaints: report data portal or dataset concerns to the Department of Information Technology contact or use the portal help/contact tools for API and dataset issues.
  • Appeals & review: appeal procedures and time limits should be stated on any administrative notice; if not stated, request written reasons and the applicable ordinance citation from the issuing office.
  • Defences/discretion: common defences include reasonable excuse, confidentiality exemptions under Hawaii law, or an approved variance; verify exemptions in the municipal code or seek a formal determination from the issuing department.

Applications & Forms

The open data portal provides dataset upload and API registration interfaces; there is no separate, published city compliance form for open-data violations on the cited pages. For dataset publishing use the portal's dataset submission tools and consult the Department of Information Technology for API keys or technical onboarding.

If no compliance form is listed, submit a written request to the Department of Information Technology for clarification and keep a copy of your submission.

FAQ

Who manages Honolulu's open data portal?
The Department of Information Technology manages the portal and provides technical guidance; see the Department of Information Technology and the portal for contact options.
Are there fees to publish datasets or use the API?
Fees for publishing or API access are not specified on the cited open-data pages; contact the Department of Information Technology for any cost or service-level details.
Where do I report a data removal or disclosure concern?
Report dataset removal, privacy, or disclosure concerns to the Department of Information Technology and follow any instructions on the portal's help or contact pages.

How-To

  1. Prepare your dataset: verify fields, metadata, and any privacy-sensitive columns are removed or redacted.
  2. Validate formats: confirm CSV, JSON, or other allowed formats and include machine-readable metadata.
  3. Register or request API access: follow the portal's API registration or key-request process when available.
  4. Publish and monitor: publish via the portal, monitor API usage, and keep records of publication and version changes.
  5. If you receive a notice: read the notice, note the appeal window if stated, and contact the issuing department immediately to request clarifications or file an appeal.

Key Takeaways

  • Consult official portal documentation and the Department of Information Technology before publishing.
  • Preserve records of submissions, API keys, and publication versions for compliance and appeals.

Help and Support / Resources

  1. [1] Department of Information Technology - City and County of Honolulu
  2. [2] Honolulu Open Data Portal (data.honolulu.gov)
  3. [3] Honolulu Revised Ordinances - municipal code

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