Technical Work
each building or other ergotaxjaki' manufacture of time duration, as construction, addition, repair, cashiering and electromechanical installation.

Metres of Safety
all the metres that concern in technical work and are forecasted by the provisions that are in effect each for the hygiene and the safety of work.

Contractor
person that contributes with hire of work, with the gentleman of work and undertakes the implementation of entire technical work or his department, independent from the attribute with which it is brought secured in actuarial organism.

Subcontractor
person that contracts with hire of work, with the contractor and undertakes the implementation of entire technical work or his department, independent from the attribute with which it is brought secured in actuarial organism. As subcontractor is considered also and the person that contracts with hire of work with other subcontractor and undertakes according to more the implementation of technical work or his department.

Student
person that with convention with the gentleman of work, has worked out the study of technical work, which has been approved by the responsible beginning.

Supervising
person that with convention with the gentleman of work, and according to the being in effect provisions undertakes the supervision of application of study and implementation of technical work or his department, according to the rules of science and art.

Gentleman of work
the gentleman, the possessor or the holder of real estate, in which it is executed after his command and on behalf of his technical work.