I've been unable to find a place on the Web that discusses the Passenger Services Act of 1886 in any great detail, other than a handful of newspaper articles. Since newspaper articles on the Web are frequently impermanent, I'm providing these next three links with the note that they may not always be available:
- Seattle Times Oct 4, 1998: Cruise line looks to drop anchor in Seattle
- Orlando Sentinal July 27, 1997: Your vacation cruise may become longer
- The Seattle Daily Journal of Commerce 1996: US laws put cruise industry on cruise control
You may be able to find additional information about the Passenger Services Act of 1886 by searching the various Web search engines - I recommend in particular Ask Jeeves.