An ERD (Entity Relationship Diagram) is a graphical representation of the data in rest within a system (e.g. a business, an organization, an application) that is subject to analysis.
1. REFERENCE DOSE (RfD): DESCRIPTION AND USE IN HEALTH RISK ASSESSMENTS. 1.1. INTRODUCTION. This concept paper describes the U.S. Environmental Protection Agency's (U.S. EPA) principal approach to and rationale for assessing risk for health effects other than cancer and gene mutations from chronic chemical exposure.
What is an RFA? A Regional Fire Authority (RFA) is a special purpose district established by voters in a service area that provides funding for fire and medical emergency services. An RFA can be made up of cities, fire districts or a combination of the two. An RFA is created by vote of the people in the proposed service area. Together, voters in Renton and FD #25 approved the creation and funding of the RFA by more than the required 60% majority.