The part every generic guide gets wrong: they explain visa types, not what actually happens when the clock runs out mid-trip.
The first e-visa was double-entry, 30 days per stay, valid across a multi-month window. That sounds generous until the itinerary itself runs past the practical limit of a single 30-day stay. The fix: a Kazakhstan visa run — cross the border, let the first entry lapse cleanly, come back on a freshly issued single-entry e-visa (applied for and issued while physically in Kazakhstan, a few days into that leg, at a confirmed cost of USD 21.50).
Choosing dual vs. multiple entry, before you apply: if your loop is simple — one country, one exit and return — a dual-entry e-visa covers it. But if you're stitching together a longer regional chain (Uzbekistan → Kazakhstan → Kyrgyzstan → back into Uzbekistan → onward to Turkmenistan or Tajikistan), pay the small extra for multiple entry upfront. Re-applying mid-trip works, but it costs you planning flexibility and a few days of uncertainty exactly when you don't want it.
Two administrative quirks that actually matter:
Hotel registration isn't the strict "every stay, 24 hours, no exceptions" rule it's often described as. Registration is actually required if you stay beyond 3 days (72 hours) — hotels handle it automatically, no action needed from you, and this is what those "mehmonxona varaqasi" slips are. It gets checked mainly at departure, when border guards may ask for every registration slip to confirm where you slept each night. Keep them — a PDF or photo works fine — since the Indian Embassy in Tashkent cites a fine of 1,500,000 UZS (roughly $115–120) for foreigners who can't produce valid registration, on top of the hassle of being questioned in the first place.
SIM/IMEI registration if you're staying a while. Foreign phones on a local SIM must have their IMEI registered with the state within a set window (30-60 days) or the connection gets blocked. The actual text message looks like this:
"Dear Subscriber! We inform you that a device with IMEI [xxxxxxxxxxxxxxx — number withheld] code must be registered before the notified deadline, in accordance with the requirements of the legislation of the Republic of Uzbekistan. To do this, please register through the post offices or System Operator. More details www.uzimei.uz"
Register via uzimei.uz or dial *1170# on the local SIM. If the phone wasn't declared at customs on entry, registration can trigger a customs duty — worth checking directly rather than assuming.