Why Different Countries Have Different Passport Photograph Requirements When applying for a passport, one of the requirements is to submit a passport photograph. However, did you know that different countries have different requirements for what makes a valid passport photograph? There are many factors that contribute to why different countries have different requirements for passport photographs. One of the most significant reasons is that different countries have various security concerns. For example, a country with a higher threat of terrorism is likely to have stricter requirements for passport photographs to ensure that only legitimate citizens can enter the country. Another reason why different countries have different passport photograph requirements is due to the fact that they use different systems for storing and processing these images. For example, some countries may use more advanced facial recognition software requiring higher quality images, while others may get by with lower quality images. Ultimately, it comes down to what each individual country feels is necessary in order to maintain its security. So, if you're planning to travel to a foreign country, research their passport photograph requirements in advance. It may seem like a small thing, but it can make a big difference in whether or not you're able to enter the country.