1.   Some boroughs -- including the two named -- are notoriously bad at collecting rents, and London arrears have soared already as the tighter benefit rules have taken effect.

2.   Under contract law, a specific rule will normally take precedence over a generalised rule on the same subject.

3.   Any statutory rules will of course take precedence over contractual rules.

4.   Overall there are few general principles on whether one rule will take precedence over another.

5.   Though the rules will normally take precedence, usages may be highly relevant to the interpretation of the rules.

6.   And even after the rule takes effect, operators would probably have a year to comply.

7.   A one-a-month rule would take the profit out of interstate gun trafficking, making it harder for children and felons to obtain illegal guns.

8.   Bush allowed the rules to take effect in April.

9.   But Diane Munns, representing state utility regulators, argued that the rules would take away the right of state governments to oversee communication companies operating within their borders.