♠ ♥ ♣ ♦ : PERMITTED AGREEMENTS (LEVEL 4 AMPLIFIED)
One level openings: (1st & 2nd seat rule of 18); 1NT 9+ HCP
1♣, 1♦ : any meaning as long as this does not include hands with 5 card or longer major - unless minor is as long as or longer than major.
or Forcing ER25
or 4+ cards in the suit bid plus a longer side suit
1♥ 1♠: any meaning which shows 4 or more cards in suit bid
1NT: natural, non-forcing, with a defined range * and must not have more than nine cards in two suits, no void, or 7 hearts or 7 spades.
* SBC agreed to only announce range if outside "12-14".
Two level opening:
Any meaning as long as shows ER25 or
Any meaning which shows at least four cards in the suit
2♣, 2♦ may be played to show at least 4-4 in the majors
Multi 2♦ weak option defined range of 5HCP, min 4HCP, max 12HCP
Strong options must include ER25
Other two level openings:
2♣, 2♦, 2♥, 2♠, can be game force; Acol two; 4441 or 5440 having defined range, singleton/void not specified. Balanced or semi-balanced hand with defined range.
Opening 2NT either any meaning shows ER25
Or both minors - any strength.
Opening 3NT: 1) Natural 2) an unspecified solid suit with or without outside high cards or 3) a single suiter, being one of at most two possible suits
Opening 4♣, 4♦ one of either natural any agreed range or 4♣/4♦ shows strong 4♥/4♠ opener.
Higher opening bids: suit bids must be natural and NT bids may have any agreed meaning.
Carding: Any system of leads, signals and discards may be used as long as the system card gives reasonable detail but must not include any form of encrypted carding or dual meaning signals