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15. UNDERSTANDING POLICIES AND INITIATIVES SUPPORTING

VERMICOMPOSTING

15.1. Türkiye

15.1.1. Policies

Although there is no specific legal regulation on vermicomposting in Türkiye, the first legal

restriction on the composting of solid wastes was determined in the Regulation on Solid Waste
Control published in the Official Gazette dated 14.03.1991 and numbered 20814. After that, the

Regulation on Soil Pollution Control was published in the Official Gazette dated 10.12.2001

and numbered 24609 and then the Regulation on Amendment of the Regulation on Solid Waste
Control was published in the Official Gazette dated 25.04.2002 and numbered 24736 and some

provisions in this regulation were subjected to the provisions in the Regulation on Soil Pollution
Control.

Article 36 of the by-Law on Control of Solid Wastes, which determines the quality criteria of

compost intended to be used in agriculture, and Article 37, which determines the heavy metal
content and limit values of compost, have been combined in the by-Law on Soil Pollution

Control and regulated under Article 10.

While Article 37 of the by Law on Solid Waste Control stipulates that heavy metal analyses in

soil should be carried out on lands larger than one hectare, Article 10 of the by-Law on Soil

Pollution Control does not stipulate such a condition for heavy metal analyses, and stipulates
that such analyses should be carried out on lands of any size.

While the limitation on the heavy metal load of the soil in the by-Law on Solid Waste Control
is valid in case of repeated application of the compost to the land, this statement is corrected in

the by-Law on Soil Pollution Control as the application of the compost to the land every year

in a 10-year period and the application period is tied to a certain period.

The heavy metal limit values in the by-Law on Solid Waste Control were reorganised in the by-

Law on Soil Pollution Control. While the limit values of heavy metals in soil were stated as a
single value in the by-Law on Solid Waste Control, these values are regulated according to two

different conditions according to the pH of the soil being greater than 6 and less than 6 in the
by-Law on Soil Pollution Control published later. The heavy metal limit values in the

Regulation on Soil Pollution Control and the Regulation on Solid Waste Control are given

below in comparison (Table 11).

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