Rosie the Riveter National Historic Site Expansion Act This bill adds to the Rosie the Riveter/World War II Home Front National Historical Park in California Nystrom Elementary School--The Maritime Building and other areas as the Department of the Interior deems appropriate. Within the boundaries of the park, Interior may acquire lands, improvements, waters, or interests therein by donation, purchase, exchange, or transfer. Any lands, or interests therein, owned by California or any political subdivision of California may be acquired only by donation.