Turkey: Nonroad Diesel Engines

Emission standards for nonroad engines are adopted by the Turkish Ministry of Science, Industry and Technology (Bilim, Sanayi ve Teknoloji Bakanlığından). The standards are harmonized with EU regulations for nonroad mobile machinery (NRMM), but implementation dates are different, as outlined in Table 1. Stage IV emission standards were originally scheduled for 2014, delayed until 2019 [3302][3303], and finally implemented for agricultural and forestry tractors only from 2021. Stage V emission standards are effective from October 2022 [5221].

**Table 1**
Turkish emission standards for nonroad diesel engines
Stage	Power (P), kW	Date*
Mobile Nonrod Engines
Stage I (Faz I)	37 ≤ P ≤ 560	2003.04
Stage II (Faz II)	18 ≤ P ≤ 560	2007.01
Stage IIIA (Faz IIIA)	19 ≤ P ≤ 560	2011.01
Stage IIIB (Faz IIIB)	37 ≤ P ≤ 56	2021.07^a
Stage IV (Faz IV)	56 ≤ P < 130	2021.10^a
Stage IV (Faz IV)	130 ≤ P ≤ 560	2021.01^a
Stage V (Faz V)	0 < P	2022.10^b,c
Inland Waterway Vessels
Stage IIIA (Faz IIIA)	37 ≤ P	2010
Stage V (Faz V)	19 ≤ P	2022.10
Rail Engines
Stage IIIA (Faz IIIA)	130 ≤ P	2010
Stage IIIB (Faz IIIB)	130 ≤ P	2012
Stage V (Faz V)	0 < P	2022.10
* Market placement (new type approval dates are usually one year earlier) ^a Agricultural and forestry tractors only (Stage IIIA is required for other NRMM, Stage IIIB/IV is optional) ^b 2023.01 for agricultural and forestry tractors ^c Machinery manufacturers who still have Stage IIIA, IIIB or IV engines manufactured before this date in their stock are allowed 2 months (until 2023.1.1) to use those engines in their machines and to place these machines on the market.