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INCOME TAXES
3 Months Ended
Mar. 31, 2023
Income Tax Disclosure [Abstract]  
INCOME TAXES INCOME TAXES
The effective income tax rates for the three months ended March 31, 2023 and 2022 were 21.5% and 22.4%, respectively.

The period-over-period decrease in the effective income tax rate is due to higher investment tax credits available on certain capital projects in the US, and the effects of rate-regulated accounting for income taxes relative to earnings.