"This report provides information and analysis on a boycott, divestment, and sanctions ('BDS') movement against Israel. The BDS movement is generally seen as a loose grouping of actors from various countries who advocate or engage in economic measures against Israel or Israel-related individuals or organizations, though defining precisely what may or may not constitute BDS activity is subject to debate. The report also analyzes economic measures that 'differentiate' or might be seen as differentiating between (1) Israel in general and (2) entities linked with Israeli-developed areas and settlements (whose legality is questioned under international law). Such settlements are found in the West Bank, East Jerusalem, and Golan Heights- areas that Israel has controlled and administered since the 1967 Arab-Israeli war. Debate is ongoing in the United States and elsewhere about whether economic differentiation (such as with regard to product labeling policies) between Israel proper and Israeli settlements constitutes a form of BDS. The report also discusses  Anti-BDS or anti-differentiation efforts to date, including U.S. legislative action and proposals at the federal and state level […] [and]  Legislative considerations arising from existing antiboycott law, First Amendment issues, and issues regarding congressional powers over commerce and foreign affairs. "
CRS Report for Congress, R44281
Federation of American Scientists: http://www.fas.org/sgp/crs/index.html