Legislation does not require installation in the middle and elementary schools.

In many instances the rules may require installation by a professional.

The product is web-based and therefore does not require installation.

Some backup systems can be easily installed at home, but others require professional installation.

A new zoning law required the installation of an outdoor recreation area.

The speakerphone ($99 at driveblue.com) does not require professional installation.

Under existing rules, certain physical changes to plants require installation of pollution control equipment.

The direct-wiring approach can give much better sound, but it is also more expensive and requires professional installation.

Both require professional installation and use smaller video screens than the built-in models.

This required the installation of satellites and terminals across Idaho.