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NIST IR 8335 (Initial Public Draft)

Identity as a Service for Public Safety Organizations

Date Published: June 2021
Comments Due: August 2, 2021 (public comment period is CLOSED)
Email Questions to:


William Fisher (NIST), Christopher Brown (MITRE), Mark Russell (MITRE), Sudhi Umarji (MITRE), Karen Scarfone (Scarfone Cybersecurity)


Identity as a service (IDaaS) is when a company offers identity, credential, and access management (ICAM) services to customers through a software-as-a-service (SaaS) cloud-service model. Public safety organizations (PSOs) could potentially reduce costs and adopt new standards and authenticators more easily by using IDaaS to provide authentication services for their own applications. This would allow PSOs to offload some or most of their authentication responsibilities to the IDaaS provider.

This report informs PSOs about IDaaS and how they can benefit from it. It also lists questions that PSOs can ask IDaaS providers when evaluating their services to ensure the PSOs’ authentication needs are met and the risk associated with authentication is mitigated properly. PSOs considering IDaaS usage are encouraged to use this NISTIR. This report was developed in joint partnership between the National Cybersecurity Center of Excellence (NCCoE) and the Public Safety Communications Research Division (PSCR) at NIST.

NOTE: A call for patent claims is included on page iii of this draft. For additional information, see the Information Technology Laboratory (ITL) Patent Policy--Inclusion of Patents in ITL Publications.



authentication; identity, credential, and access management (ICAM); identity as a service (IDaaS); multifactor authentication; public safety and first responders; public safety organization (PSO)
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Supplemental Material:
Project homepage

Document History:
06/16/21: IR 8335 (Draft)


Security and Privacy

authentication, risk management


cloud & virtualization


public safety