21.   SEC rules limit what a company or its underwriter can say about a pending stock sale.

22.   Senate rules limit senators to a single chairmanship.

23.   The federal rules limit access to medical records by law enforcement officers, but do not provide as much protection for privacy as the American Civil Liberties Union wanted.

24.   The new rules also limited the prevote discussion to two hours.

25.   The new rules also strictly limit their ability to hide their debts in the accounts of affiliates by forcing them to report their results on a consolidated basis.

26.   The old rule limited their operation to blackouts, with some exceptions for testing.

27.   The rule limits computer-guided trading to curb volatility.

28.   The rule limits some computer-guided trading in an effort to curb volatility.

29.   The rules limit commercial-bank ownership of non-financial businesses.