Then came an exhilarating acceleration, with the next 42 scored off 29 balls, before Steyn made a stunning return with the mandatory change of ball after 34 overs.
However, in one-day internationals a mandatory ball change is now enforced after 34 overs because the white titanium dioxide dye rubs off the leather.
Both are keen de-regulators and Mr Paterson is pushing a new " dash for gas", a policy the Committee on Climate Change says is incompatible with mandatory targets under the Climate Change Act to reduce emissions 80% by 2050.
His bill to force mandatory action on climate change lost a Senate vote late last year, but got an impressive 43 votes.
The U.S. Sentencing Commission has been pushing Congress for more than a decade to change the law that created mandatory minimum sentences for crack cocaine.
While unions may become more prevalent, a repeal of mandatory bargaining and exclusive representation would cause them to change their bargaining techniques.
The review, which will be published, is intended to identify how Barclays' business practices and culture needs to change, and to produce a new, mandatory code of conduct for the bank's staff.
But the administration opposes mandatory emissions targets, and there is probably not enough time to get a meaningful climate change bill to the president's desk by the end of the year.
While those dreaded fees and excess charges won't be going anywhere in 2012, one welcome change to air travel this coming year is that airlines will be required to list mandatory charges in their advertised prices as of 24 January.
Nancy Lefkowitz, of antigun violence group March for Change, asked for bans on high-capacity magazines and military-style assault rifles and called for mandatory background checks for all guns.
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