1. Determine if you are required to file a tax return. You are required to file a federal income tax return if you are a citizen or resident of the United States or a resident of Puerto Rico. Your marital status, age, filing method, and income all affect whether or not you are required to file taxes.
proficiency testing. proficiency testing. a program in which specimens of quality control material are periodically sent to members of a group of laboratories for analysis, with each laboratory's results compared with those of its peers. See also: proficiency samples.
The Concise Oxford English Dictionary defines the term, âsustainabilityâ as (the ability to) âkeep (something) going over time or continuously.â In context of a community-based service delivery program, it can mean to be the ability of the program to provide the services continuously or for over a longer period of time.