For how long is the diplomatic E passport valid?

The diplomatic E passport is generally valid for a period of 5 years. This validity period aligns with many government protocols for passports issued to diplomats and official travelers, as they often require a shorter renewal cycle compared to regular passports to ensure that they remain up-to-date with any changes in diplomatic status or international relations. This 5-year validity allows the pertinent authorities to maintain current information and security measures, facilitating the effective use of the passport in official capacities.