General Pinochet introduced unilateral tariff cuts, and the democratic governments of the centre-left that followed have continued the policy.

ECONOMIST: Chile's economy

When they had rung in with correct meter readings after receiving estimated bills, EDF's automated system had charged all the additional units - if there were any - at its higher tariff rates following a general price rise.

BBC: Ofgem demands billing explanation from energy suppliers

Section 201(d) of the Implementation Act authorizes the President to take such action as may be necessary in implementing the tariff-rate quotas set forth in Appendix I to the General Notes to the Schedule of the United States to Annex 3.3 of the Agreement to ensure that imports of agricultural goods do not disrupt the orderly marketing of commodities in the United States.

WHITEHOUSE: The White House