This online course provides an introduction to National Incident Management System (NIMS) intrastate mutual aid and assistance. Participants will learn about the purpose and benefits of mutual aid and assistance, and the emphasis that NIMS places on mutual aid and assistance. The course explains how to develop mutual aid and assistance agreements and mutual aid operational plans. The learner must achieve a minimum passing score of 75% on final knowledge assessments or demonstrate mastery on performance assessments or research assignments to earn the IACET CEU.