British Board of Film Classification
The British Board of Film Classification is an organization which classifies works exhibited in cinemas (including films, trailers, and advertisements), released on video (including television programs released on video, DVD menus, and bonus content), and available for streaming.

The current certificates are:

 U: Universal  Suitable for all 
 PG: Parental guidance  
 12A (cinema releases)  and 12 (video releases)  Suitable for 12 years and over 
 15: Suitable only for 15 years and over  
 18: Suitable only for adults  
 R18: Adult works for licensed premises only 

In addition, works can be rejected, meaning they cannot be legally released in the UK, though they can be edited and resubmitted.

The most restrictive classification given to any Star Trek work is a 15 certificate, received by:
 
  (1989 and 1992 uncut video versions)

 
 
  (6 seconds cut to receive classification)

 
  – brief strong gory images
  – strong sex
  – strong violence
  – strong violence
  – strong injury detail
 Season 1 – strong violence, sex, gory images
  – brief strong injury detail, threat
 Season 2 – brief strong injury detail, threat

 
  – strong injury detail
  – brief strong violence
  – strong violence, bloody images, language, suicide references
  – strong violence
 Season 1 – strong violence, bloody images, language, suicide references

External links
  – official homepage
  rated by the BBFC
 
 
Rating systems