What does lower degree of protection mean in SBR-B?

For buildings located on an industrial estate or in an area designated as having a lower degree of protection in a zoning plan. There is a need for a Nota Industrielawaai or Gemeentelijke Geluidnota.

For buildings located on an industrial estate or in an area designated as having a lower degree of protection in a zoning plan. There is a need for a Nota Industrielawaai or Gemeentelijke Geluidnota. Higher values may be maintained after reasoning.