Both of Afghanistan's World Heritage properties are cultural: the Minaret of Jam and the Bamiyan Valley
Background
The UNESCO World Heritage Centre's State Party page for Afghanistan shows Cultural 2 and no natural or mixed property, so both inscribed properties are in the cultural category.
They are the Minaret and Archaeological Remains of Jam, inscribed in 2002, and the Cultural Landscape and Archaeological Remains of the Bamiyan Valley, inscribed in 2003.
The same page records Ratification of the Convention: Tuesday, 20 March 1979.
There are four Sites on the Tentative List, which UNESCO describes as an inventory of those properties which each State Party intends to consider for nomination: City of Herat and City of Balkh (antique Bactria), both listed in 2004, Band-E-Amir, also 2004, and Bagh-e Babur, listed in 2009.
The page carries 43 State of Conservation Reports for Afghanistan and records 8 International assistance requests approved, for a total amount of 323,670 US dollars. Among the news items it lists is one on efforts towards removing the Bamiyan Valley from the List of World Heritage in Danger.
In plain words
Tentative List Inventory held under the World Heritage Convention — A State Party's own inventory of properties it intends to consider for nomination later.
State of Conservation report Monitoring report to the World Heritage Committee — A report on the threats a listed property faces, placed before the World Heritage Committee.