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Rules & Regulations
SECTION 1 - The Equipment
1. The Standard Table
  Dimensions
  (a) The playing area within the cushion faces shall measure 11ft 8½in x 5ft 10in (3569mm x 1778mm) with a tolerance on both dimensions of +/- ½in (+/- 13mm).
  Height
  (b) The height of the table from the floor to the top of the cushion rail shall be from 2ft 9½in to 2ft 10½in (851mm to 876mm).
  Pocket Openings
  (c) (i) There shall be pockets at the corners (two at the Spot end known as the top pockets and two at the Baulk end known as the bottom pockets) and one each at the middle of the longer sides (known as the center pockets).
(ii) The pocket openings shall conform to the templates authorized by the World Professional Billiards and Snooker Association (WPBSA).
  Baulk-line And Baulk
  (d) A straight line drawn 29in (737mm) from the face of the bottom cushion and parallel to it is called the Baulk-line, and that line and the intervening space is termed the Baulk.
  The "D"
  (e) The "D" is a semi-circle described in Baulk with its center at the middle of the Baulk-line and with a radius of 11½in (292mm).
  Spots
  (f) Four spots are marked on the center longitudinal line of the table:
(i) the Spot (known as the Black Spot), 12¾in (324mm) from a point perpendicularly below the face of the top cushion.
(ii) The Center Spot (known as the Blue Spot), located midway between the faces of the top and bottom cushions.
(iii) The Pyramid Spot (known as the Pink Spot), located midway between the Center Spot and the face of the top cushion.
(iv) The Middle of the Baulk-line (known as the Brown Spot).
  Two other spots used are located at the corners of the 'D'. Viewed from the Baulk end, the one on the right is known as the Yellow Spot and the one on the left as the Green Spot.
2. The Balls
  The balls shall be of an approved composition and shall each have a diameter of 2 1/16in (52.5mm) with a tolerance of +/- 0.05mm and:
  (a) they shall be of equal weight within a tolerance of 3g (0.106oz) per set
  (b) a ball or set of balls may be changed by agreement between the players or on a decision by the referee.
  The correct value for the balls are as follows:
Red - 1
Yellow - 2
Green - 3
Brown - 4
Blue - 5
Pink - 6
Black - 7
3. The Balls
  A cue shall be not less than 3ft (914mm) in length and shall show no substantial departure from the traditional and generally accepted shape and form.
4. Ancillary
  Various cue rests, long cues (called butts and half-butts according to length), extensions and adaptors may be used by players faced with difficult positions for cueing. These may form part of the equipment normally found at the table but also include equipment introduced by either player or the referee (see also Section 3 Rule 18). All extensions, adaptors and other devices to aid cueing must be of a design approved by the WPBSA.
The official rules of snooker are copyright of the World Professional Billiards and Snooker Association (WPBSA).
Revised August 2014.
Membership Application
Support the promotion and development of the sport of snooker in the United States by becoming a member of the United States Snooker Association (USSA).
International Billiards & Snooker Federation (IBSF)
The governing body for non-professional snooker and English billiards in the world
American CueSports (ACS)
An organization to heighten the interest and awareness of cuesports through the support and sanctioning of competition throughout the United States and North America
 
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