TNI Mission

The NELAC Institute (TNI) is a 501(c)(3) non-profit organization whose mission is to foster the generation of environmental data of known and documented quality through an open, inclusive, and transparent process that is responsive to the needs of the community.

About TNI

List of TNI Committees

Consensus Standards Development Program	National Environmental Laboratory Accreditation Program
Accreditation Body Expert Committee	Laboratory Accreditation System Committee
Field Activities Expert Committee	Proficiency Testing Committee
On-site Assessment Expert Committee	Technical Assistance Committee
Proficiency Testing Expert Committee	Small Laboratory Committee
Quality Systems Expert Committee	Assessor Forum Committee
Website Committee	Advocacy Committee
Policy Committee

Link to TNI Committees Pages

How to Begin the Process of Accreditation:

Review the list of recognized Accreditation Bodies: Accreditation Bodies

If your laboratory is located within one of these 12 states, you must go to that state for accreditation. If your laboratory is in another state or country, you can choose to apply to any state. But, be careful of these facts:

- Some states only offer accreditation in some areas, e.g., only drinking water.
- Some states will not accredit out-of-state laboratories.

Review the scope of the accreditation program of each state relative to your scope of services and select a state to apply to for primary accreditation.

Read the state-specific rules and regulations for how to apply within that state.

Read the 2003 NELAC Standards , especially Chapters 2-5 and implement a program to comply with the requirements.

Note: For laboratories that have never been accredited, this is usually a 12-18 month process.