I'll give my last cruise as an example.
We left San Pedro (the Port of Los Angeles), traveled for five days, ending up in Honolulu. Visited Kauai, Lahaina, and Hilo. The stop in Kona had to be cancelled due to high waves. Traveled for another five days, next day spent in Ensenada, Mexico. The next day we disembarked in San Pedro.
According to this change, Princess and the other cruiselines that have a similar itinerary would have to add time in Ensenada (48 hours!

), which means dropping a port or two in Hawaii. Now this is a Hawaiian cruise. Not a Hawaiian/Mexican cruise. Most of the passengers stayed onboard the ship at that last stop as many of them have been there before or just don't have an interest in that port. My family got off the ship long enough to walk to the marketplace next to the pier so that my hubby can buy a trinket for his mother. We returned to the ship, had lunch and hanged around at the pool.
The genesis of this change is NCLA (the NCL company that was started so that it could run the American flagged ships, Pride of Aloha, Pride of America and Pride of Hawaii, which is being reflagged as the foreign-flagged Jade). The company took a gamble that fans of cruising would be flocking to the Hawaii-only cruises. Apparently, the results have been disappointing and are looking to hamper or eliminate the competition.
Unfortunately, this revision could eliminate the Hawaiian cruises originating from San Diego (HAL), and Los Angeles (Princess and Celebrity), but also do the same for Alaskan cruises going roundtrip from San Francisco and Seattle. It could impact other cruises going from the west coast of the U.S. and the east coast.
Another negative effect would be damaging to the ports themselves. Seattle, for example, built a second terminal just about four years ago just to handle additional cruiseships. Restaurants, hotels, taxi and shuttle services are just some of the companies that will see a loss of tourism dollars. Even when we park at the Port of LA, some of the parking fees goes to the City of LA.
During the short amount of time that the CBP allowed for comments to be posted at its website, many citizens and politicians presented their opposition, including the governor of California, as well as the mayor of LA. The governor of Hawaii has also voiced opposition when she realized that her own state could be losing many cruises.