The Ernst & Young ITS Washington Dispatch brings you a monthly review of US international tax-related developments. In this edition: IRS finalizes Section 245A DRD anti-abuse regulations with few changes – Treasury and IRS propose complex, taxpayer-favorable regulations to reduce possibility of double taxation caused by anti-abuse rules during GILTI gap period – US, Swiss competent authorities reach agreement on treaty arbitration process – UN Tax Committee issues proposal for taxing digital services income.