...and WPA WSR info.
From the WPA Tournament Table & Equipment Specifications:
17. Cue Sticks. Cue Sticks used at WPA competitions should comply with the following during play at table:
Length of Cue: 40 inches [1.016 m] minimum / No Maximum
Weight of Cue: No minimum / 25 oz. [708.75 gm] maximum
Width of Tip: No minimum / 14mm maximum
The cue tip may not be of a material that can scratch or damage the addressed ball. The cue tip on any stick must be composed of a piece of specially processed leather or other fibrous or pliable material that extends the natural line of the shaft end of the cue and contacts the cue ball when the shot is executed.
The ferrule of the cue stick, if of a metal material, may not be more than 1inch [2.54 cm] in length.
Also applicable is WSR 1.3(a):
Cue Stick – The player is permitted to switch between cue sticks during the match, such as break, jump and normal cues. He may use either a built-in extender or an add-on extender to increase the length of the stick.
In WPA rules/specs please note:
- there is no maximum length specified for any cue of any type.
- there is no limit on the number of cues that may be brought to a match or used during a match.
Conetip quotes an obsolete rule set. Current WPA WSR and specs are at
http://www.wpa-pool.com/index.asp?content=rules_tournament and can also be found through the BCA website.
Also please note that there is no specific ban on phenolic tips in WPA specs. As evidenced by the roughly 1,246.37 individual threads on AZB concerning the subject, whether a phenolic tip violates WPA specs may be a subject open to interpretation.
For BCAPL play - the cue specs are the same as WSR. In BCAPL play, any tip used to execute a break shot must be comprised entirely of leather at the entire surface that contacts the cue ball. For all other shots, phenolic tips are legal.
As always, any rule set is subject to modification by the administrative authority of any event.

Buddy Eick
BCAPL National Head Referee
BCAPL Director of Referee Training
Technical Editor, BCAPL Rule Book
bcapl_referee@cox.net
Find the Official Rules of the BCA Pool League here:
http://www.playbca.com/Downloads/Rulebook/CompleteRulebook/tabid/372/Default.aspx
* The contents of this post refer to BCA Pool League (BCAPL) Rules only. The BCAPL National Office has authorized me to act in an official capacity regarding questions about BCAPL Rules matters in public forums.
* Neither I nor any BCAPL referee make any policy decisions regarding BCAPL Rules. Any and all decisions, interpretations, or Applied Rulings are made by the BCAPL National Office and are solely their responsibility. BCAPL referees are enforcers of rules, not legislators. BCAPL Rules 9.5.3 and 9.5.4 and the BCAPL Rules "Statement of Principles" apply.
* No reference to, inference concerning, or comment on any other set of rules (WPA, APA, VNEA, TAP, or any other set of rules, public or private) is intended or should be derived from this post unless specifically stated.
* For General Rules, 8-Ball, 9-Ball, 10-Ball, and 14.1 Continuous: there is no such thing as "BCA Rules" other than in the sense that the Billiard Congress of America (BCA) publishes various rules, including the World Pool-Billiard Association's "World Standardized Rules" for those games. The BCA has no rules committee. The BCA does not edit, nor is responsible for the content of, the World Standardized Rules. The Official Rules of the BCAPL is a separate and independent set of rules and, to avoid confusion, should not be referred to as "BCA Rules".
* Since 2004, there is no such thing as a "BCA Referee". The BCA no longer has any program to train, certify or sanction billiards referees or officials.
* The BCAPL has no association with the Billiard Congress of America other than in their capacity as a member of the BCA. The letters "BCA" in BCAPL do not stand for "Billiard Congress of America, nor for anything at all.
* The BCAPL has not addressed every imaginable rules issue, nor will it ever likely be able to, as evidenced by the seemingly endless situations that people dream up or that (more frequently) actually happen. If I do not have the answer to a question I will tell you so, then I will get a ruling from the BCAPL National Office and get back to you as soon as I can. If deemed necessary, the BCAPL will then add the ruling to the "Applied Rulings" section of The Official Rules of the BCA Pool League.
* All BCAPL members are, as always, encouraged to e-mail Bill Stock at the BCAPL National Office, bill@playcsi.com, with any comments, concerns or suggestions about the BCAPL rules.