...is based upon the established principles of a profession or science, and which requires professional or technical training equivalent to that represented...graduation from a college or university of recognized standing. Professional engineering curricula as offered by colleges and universities of recognized...

...administrative or research work which is based upon the established principles of a profession or science, or which requires professional, scientific or technical...graduation from a college or university of recognized standing. By comparison, the Engineering Technician Series GS-802 for example series definition states...

...and subprofessional service. The law clearly defines this difference and which hinges upon whether "professional, scientific, or technical training equivalent...graduation from a college or university of recognized standing" is necessary to perform the duties of the position or not. Apparently classifiers are in...

...which are to perform work based upon the established principles of a profession or science, requiring professional, scientific, or technical training equivalent...graduation from a college or university of recognized standing. A grade is composed of all classes of positions falling within the same service which are...

...the ability to supervise the work of a small number of employees. The training involved is inferior to that represented by graduation from a college or university of recognized standing.3 The average yearly salary of this class of workers in 1926 was $2094. The maximum salary...