What is Unchanged condition of goods?
The requirement that goods keep, until the customs procedure ends, the properties they had on the day they were placed under it, to the same extent. The Customs Code sets apart two kinds of change from this condition: natural wear and tear of the goods, and losses that occur under normal conditions of carriage or storage. These two are not regarded as a "change". The requirement appears in several procedures: goods under temporary export and goods under temporary admission must both remain in unchanged condition. Goods under temporary admission may receive maintenance and minor repairs, but major overhaul and modernisation are not allowed. In addition, the servicing must not raise the value of the goods above their value at the moment they were placed under the procedure. In short, the goods must leave the procedure in the same condition in which they entered it.
Source: Bojxona kodeksi, 10-modda; Bojxona kodeksi, 37-modda; Bojxona kodeksi, 62-modda