The classical school emphasizes production of goods and services as the key focus of economic analysis. Neoclassical economics focuses on how individuals operate within an economy. As such, the neoclassical school emphasizes the exchange of goods and services as the key focus of economic analysis.. (Source : Difference Between Classical & Neoclassical Economics | eHow) Here's information about the dates of emergence of neoclassical economics:
A random sampling of other states indicates the issue is mixed. For example, Illinois taxes the equipment if it is used in a manufacturing process. In Maine, there is no exemption. In Connecticut, all fire safety equipment is exempt.
A 1976 model year vehicle was exempt in 2005, a 1977 in 2006, etc. As of April 1, 2005, exempt from smog check requirements are any motor vehicle manufactured prior to the 1976 model year. All vehicles 1976 and newer vehicles will be tested according to state emission law. This law repeals the 30-year rolling exemption.