Well, I found this information about Uzbekistan:
Where are you from?
Simplified Visa Regulations for the citizens of some countries
1.
There is a bilateral Visa Free Regulation with Azerbaijan, Armenia, Belarus, Georgia, Kazakhstan, Moldova, Russia, Ukraine, as well as Kyrgyzstan (up to 60 days).
2.
There is a simplified visa procedure for the citizens of Austria, Belgium, Germany, France, Italy, Japan, Latvia, Malaysia, Spain Switzerland, the United Kingdom, the United States. Businessmen of these countries are issued multiple entry visas up to one year and tourists – up to one month, additionally, they do not require to submit to the Foreign Ministry an invitation of legal entity or natural person in Uzbekistan or tour-voucher. Visas are issues within 2 working days, excluding the day the documents are submitted.
3.
There is Visa Free Regulation up to 90 days for the diplomatic passport possessors of Hungary, Romania, Slovakia and Turkey. The accredited personnel of the diplomatic missions and international organisations may stay on territory of the Sides without visa for the whole period of professional activity.
There is Visa Free Regulation up to 90 days for the service passport possessors.
4.
Uzbekistan and Japan on a mutual basis issue Consular Free Visas.
From:
http://mfa.uz/eng/consular_issues/visa_reg/