NEC 2000 Series - Manual (Page 97)

Setting Up a Healthy Work Environment A-3
Arrange Your Equipment
Arrange your equipment so that you can work in a natural and relaxed
position. Place items that you use frequently within easy reach. Adjust
your workstation setup to the proper height (as described in this appendix)
by lowering the table or stand that holds your computer equipment or
raising the seat height of your chair. To create more desk space, you can
put your computer base on the floor.
Adjust
your chair
Adjust
your keyboard
and mouse
Adjust
your monitor