Autothrust Blue
Welcome aboard the Washington State Ferries
Approach plates, whether government or Jeppesen, are created from FAA Form 8260-10, which is the official instrument approach procedure created pursuant to Part 97.
The following is the link to the 8260 form for the KBHM RNAV 18 http://aeronav.faa.gov/acifp/ndbr/2011100326949301001-BHM-NDBR/AL_BIRMINGHAM_RG18_BHM.pdf
Notice that there is no prohibition for conducting this approach at night, nor is there any difference in minimums for day vs night
Last year the approach was amended to prohibit this approach at night when the VGSI is inoperative, http://aeronav.faa.gov/acifp/ndbr/2011100326949301001-BHM-NDBR/P-NOTAM_AL_BIRMINGHAM_1-3759_BHM.pdf
When Jeppesen revised the plate they made a mistake. The government plate is correct.
If you ever have a question about an approach, check the FAA database and look up the 8260-10. It is located at https://www.faa.gov/air_traffic/flight_info/aeronav/procedures/
What you are looking for the are the IFP documents for the airport.
...you wouldn't happen to have a cool callsign like "FLIGHT CHECK," would you?