Also, some candidates have had success by looking for walk-in appointments at nearby acceptance centers; this is not a guarantee, but some offices might accept walk-ins during slowerslots apps times. Your chances of getting an appointment can be greatly improved by being adaptable with your approach and location. You can still take action to deal with the situation if, in spite of your best efforts, you are unable to get a passport appointment slot. Above all, think about contacting the National Passport Information Center (NPIC) directly for advice.