1 A pacemaker is a small device that's placed in the chest or abdomen to help control abnormal heart rhythms. 2  This device uses low-energy electrical pulses to prompt the heart to beat at a normal rate. 3  Pacemakers are used to treat arrhythmias.
DEFINITION of 'Material Participation Test'. A set of criteria that determines whether a taxpayer is a material participant in a business venture.The material participation test will determine whether business income received by the taxpayer is active or passive.According to the IRS, if the taxpayer participates in a business activity on a regular, continuous and substantial basis, then the taxpayer materially participates in the business.Next Up.EFINITION of 'Material Participation Test'. A set of criteria that determines whether a taxpayer is a material participant in a business venture.
Enrolled Agents are Americaâs Tax Experts! An IRS enrolled agent (EA) is a person who has earned the privilege of representing taxpayers before the Internal Revenue Service by either passing a three-part comprehensive IRS test covering individual and business tax returns, or through experience as a former IRS employee.nrolled agent status is the highest credential the IRS awards. Individuals who obtain this elite status must adhere to ethical standards and complete 72 hours of continuing education courses every three years.