Passport requirements vary by country and are essential for international travel. Generally, travelers must possess a valid passport that meets the destination country's entry criteria, which may include expiration dates and blank pages for visas. Some countries also require additional documentation, such as a visa or proof of onward travel. Before traveling, it's crucial to check the specific passport requirements for your destination. This ensures compliance with local laws and avoids potential entry issues. Always keep your passport secure and consider making copies in case of loss or theft during your travels.