It is important to note that the criteria in BS 8233 are presented as recommendations only. They are not intended as specifications. However, the standard also offers a wealth of guidance on different topics, which relates to:
- Assessment and mitigation methods for noise on development sites, from road, rail, aircraft and industrial and construction sources
- Internal sound insulation and flanking sound transmission
- Acoustic privacy
- Reverberation time
- References to other standards that provide more information or that focus exclusively on certain topics
The internal and external ambient noise level criteria are based on the findings of the World Health Organisation.