Stratospheric Ozone Protection Act of 1987 - Amends the Clean Air Act to direct the Administrator of the Environmental Protection Agency to promulgate regulations controlling aggregate emissions of fully halogenated alkanes from the United States, setting a schedule which ultimately requires a 95 percent reduction from 1986 levels within seven years of enactment. Sets forth an emissions calculation formula which multiplies each fully halogenated alkane by its ozone depletion weight, adjusting aggregate amounts for imports, exports, production, and destruction or encapsulation.

Requires the Administrator to establish a monitoring network to detect or predict modifications in the ozone layer. Requires the Administrator to conduct a detailed scientific assessment before implementing each stage of required reductions, adjusting the control measures as necessary.

Prohibits, within one year of enactment, the import of fully halogenated alkanes in bulk from any nation without sufficiently stringent control measures. Prohibits, within three years of enactment, the import of all products containing fully halogenated alkanes from any nonequivalent nation. Sets forth a schedule of trade restrictions concerning the import or export of such alkanes, the technologies used to produce them, and the products produced by them.

Requires the Administrator to report to the Congress annually on aggregate emissions and compliance.

Sets forth enforcement provisions, including provisions allowing citizen suits.