Such structures are considered to be "nationally important and of special interest."

This status is given to "nationally important buildings of special interest".

By 1880 manufacturing replaced trade and made the city a nationally important industrial center.

Fortunately, this other role is limited to nationally important infrastructure.

Such buildings are defined as being "nationally important and of special interest".

It is also a nationally important site for birds and butterflies.

In order to achieve this national organization, it will be important to focus not only on a domestic level but also nationally.

This defines it as a "nationally important" building of "special interest".

From the 1880s to the early 1900s, an explosion in steel production became nationally important.

Buildings listed at this grade are "nationally important and of special interest".