1.   Changes would require a two-thirds majority in both houses and the approval of the electorate in a national referendum.

2.   The constitutional changes would require approval by two consecutive Legislative Assemblies before coming into force.

3.   Yet this change did not require much expenditure or creative thought allocation as a concept could have been deployed, rather than selection.

4.   But achieving behavioural change will require extra investment, notably in training.

5.   Clearly such change would require designers to reevaluate their role, and their relationship with systems users and their trade union representatives.

6.   This level of prescription is valuable in safeguarding electoral procedures from ambiguity but it does mean that even simple changes require complicated amendments to a great many legislative minuty.

7.   In any case, as General Manager, Denis Baston has been telling Robin Powell, such major changes require careful consideration.

8.   Although the service receives no tax money, it works under guidelines set by Congress, and changes require congressional approval.

9.   Although this change requires giving the patient a higher dose of X-rays during the scan, the dose is still within the medically accepted margin of safety.