DIRECTIVE (EU) 2025/2360 OF THE EUROPEAN PARLIAMENT AND OF THE COUNCIL
of 12 November 2025
on soil monitoring and resilience
(Soil Monitoring Law)
CHAPTER I
GENERAL PROVISIONS
Article 1
Objectives and subject matter
Article 2
Scope
Article 3
Definitions
Article 4
Soil districts and soil units
Article 5
Competent authorities
CHAPTER II
MONITORING AND ASSESSMENT OF SOIL HEALTH
Article 6
Monitoring framework for soil health and for soil sealing and soil removal
Article 7
Soil descriptors, criteria for healthy soil condition, and soil sealing and soil removal indicators
Article 8
Indicative list of soil contaminants
Article 9
Measurements and methodologies
Article 10
Soil health assessment
CHAPTER III
SOIL RESILIENCE
Article 11
Support for soil health and soil resilience
Article 12
Land take mitigation principles
CHAPTER IV
MANAGEMENT OF CONTAMINATED SITES
Article 13
Risk-based and stepwise approach
Article 14
Identification of potentially contaminated sites
Article 15
Investigation of potentially contaminated sites
Article 16
Site-specific risk assessment and management of contaminated sites
Article 17
Register
CHAPTER V
FUNDING, REPORTING BY MEMBER STATES AND INFORMATION TO THE PUBLIC
Article 18
Union funding
Article 19
Reporting by Member States
Article 20
Information to the public
CHAPTER VI
DELEGATION AND COMMITTEE PROCEDURE
Article 21
Exercise of the delegation
Article 22
Committee procedure
CHAPTER VII
FINAL PROVISIONS
Article 23
Access to justice
Article 24
Support by the Commission
Article 25
Evaluation and review
Article 26
Transposition
Article 27
Entry into force
Article 28
Addressees
ANNEX I
SOIL DESCRIPTORS, CRITERIA FOR HEALTHY SOIL CONDITION, AND SOIL SEALING AND SOIL REMOVAL INDICATORS
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Aspect of soil degradation |
Soil descriptor(1) |
Criteria for healthy soil condition – non-binding sustainable target values(2) |
Land areas exempted from meeting the related criterion |
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Part A: soil descriptors with criteria for healthy soil condition established at Union level |
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Salinisation(3) |
Electrical conductivity (deci-Siemens per meter) |
< 4 dS m–1 when using saturated soil paste extract (eEC) measurement method, or equivalent criterion if using another measurement method |
Naturally saline land areas, areas with regular flooding from marine submersion and areas subject to sea spray |
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Loss of Soil Organic Carbon (SOC) |
SOC concentration (g per kg) |
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No exemption |
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Member States are expected to apply corrective factors to the ratio where specific soil types or climatic conditions justify it, taking into account the link to structural stability |
Non-managed soils in natural land areas |
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Subsoil compaction |
Bulk density in subsoil (g per cm3) |
Soil texture(4) |
Range |
Non-managed soils in natural land areas and areas with naturally compacted soils |
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Sand, loamy sand, sandy loam, loam |
< 1,80 |
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Sandy clay loam, loam, clay loam, silt, silt loam |
< 1,75 |
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Silt loam, silty clay loam |
< 1,65 |
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Sandy clay, silty clay, clay loam with 35-45 % clay |
< 1,58 |
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Clay |
< 1,47 |
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Member States may apply different texture classes or values corresponding to the levels considered problematic for plant rooting system development |
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Optional:
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≥ 10 cm/day(5) Member States may adapt this value according to their local soil conditions ≥ 5 %(6) Member States may adapt this value according to their local soil conditions |
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Part B: soil descriptors with criteria for healthy soil condition established at Member State level |
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Excess nutrient content in soil |
Extractable phosphorus (mg per kg) |
< ‘maximum value’ Member States shall lay down their own maximum value, at a level that would not entail damage to human health and the environment |
Non-managed soils in natural land areas |
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Soil erosion |
Soil erosion rate (tonnes per hectare per year) |
< ‘maximum value’ Member States shall lay down their own maximum value, at a level that would not entail damage to human health and the environment |
Badlands and natural land areas, except if they represent a significant disaster risk |
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Soil contamination |
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Reasonable assurance, obtained from soil point sampling, identification and investigation of potentially contaminated sites and any other relevant information, that an unacceptable risk to human health and the environment from soil contamination does not exist Natural and anthropogenic background levels shall be taken into account in the risk assessment If natural background is the only reason leading to unacceptable risks, then the relevant soil shall be deemed to meet the healthy soil criteria provided that it is managed in such a way that an unacceptable risk to human health does not exist Habitats with a naturally high concentration of heavy metals that are included in Annex I to Directive 92/43/EEC shall remain protected |
No exemption |
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Reduction of soil water retention and infiltration |
Water retention:
Water infiltration:
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The estimated value for the total water holding capacity, the saturated hydraulic conductivity and the air capacity of a soil unit is above the minimal threshold and may also be assessed by river basin or sub-basin, taking into account water processes occurring at that scale The minimal threshold shall be set (in tonnes) by the Member State at the relevant scale, at such a value that the impacts of flooding following intense rain events or of periods of low soil moisture due to drought events are mitigated |
No exemption |
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Loss of SOC |
SOC stocks (tC ha-1) Optional:
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Contribute to national targets for net greenhouse gas removals in the LULUCF sector as referred to in Article 4(3) of Regulation (EU) 2018/841 > ‘minimum value’ Member States shall lay down the minimum value by soil texture |
No exemption |
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Part C: soil descriptors without criteria |
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Aspect of soil degradation |
Soil descriptor |
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Excess nutrient content in soil |
Total nitrogen content in soil (mg g-1) SOC to nitrogen ratio |
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Acidification |
Soil acidity (pH) Member States may also select the optional descriptor:
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Topsoil compaction |
Bulk density in topsoil (A-horizon(7) ) (g cm-3) Optional:
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Loss of soil biodiversity |
DNA metabarcoding for fungi and bacteria Member States may also select at least one optional soil descriptor for biodiversity, such as:
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Soil contamination(8) |
Concentrations of PFAS-21(9) or concentrations of PFAS-43(10) or selected PFAS set by Member States in accordance with Article 7(4) Concentrations of selected active substances in pesticides and their metabolites set by Member States in accordance with Article 7(4) Optional:
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Part D: soil sealing and soil removal indicators |
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Aspect of soil degradation |
Soil sealing and soil removal indicators |
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Soil sealing and soil removal |
Total sealed soils and areas that underwent soil removal (km2 and % of Member State surface) Soil sealing and soil removal, de-sealing and net-sealing (average per year – in km2 and % of Member State surface) Total settlement area (km2 and % of Member State surface) Land use change to and from settlement area (average per year – in km2 and % of Member State surface) Member States may also measure other related optional indicators, such as:
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ANNEX II
METHODOLOGIES
Part A: methodology for determining the number and location of sampling points and for the sampling survey
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Activity |
Minimum criteria for methodology |
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The sampling survey shall be designed from a complete sample frame containing the best available information on the distribution of soil properties, such as information resulting from relevant measurements pursuant to Article 9(3) and (4) The sampling scheme shall be a stratified random sampling optimised on the best available information on the variability of soil descriptors, and the stratification shall be based on the soil units established in accordance with Article 4(2). Sampling points related to measurements referred to in Article 9(4) may be taken into account partly or completely in the sampling scheme, regardless of their design The number and location of the sampling points shall represent the variability of the chosen soil descriptors within the soil units, with a maximum error percentage (or coefficient of variation) of 5 % The allocation and size of the sample shall be determined by applying appropriate procedures (e.g. the Bethel algorithm – Bethel, 1989(1)) which are able to account for the required maximum estimation error The sampling survey designed by the Member States for each monitoring cycle may change or remain the same Further details on determining the number and location of sampling points are to be provided pursuant to Article 24(1), point (a) |
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Exact sampling locations shall be sampled unless duly justified circumstances, such as soil saturated with water or a high level of rock content, prevent the sampling of the locations When soil composite samples are taken, they shall be a mixture of at least 5 subsamples When sampling soil in non-forested areas, residues and organic debris shall be removed from the surface When sampling soil in forested areas, the forest floor, if relevant subdivided into litter and organic layers, shall be sampled separately and the thickness and weight shall be recorded Samples or subsamples for the composite sample shall, where possible, be taken to a depth of at least 30 cm of soil. Information such as soil type and if possible genetic soil horizons shall be recorded. Subsamples shall be mixed together in order to get a homogeneous composite sample. Sampling may be done by fixed depth or by horizon, but data shall be reported by fixed depth Bulk density samples shall be undisturbed samples taken at the relevant depth, including below 30 cm for subsoil. Samples related to soil compaction (saturated hydraulic conductivity and air capacity) may be the same undisturbed samples as those taken for bulk density. Where high content of coarse fragments in soil prevents sample taking, sampling may be excluded in that location for measuring bulk density Further details on the field sampling survey are to be provided pursuant to Article 24(1), point (a), including on how to handle specific situations such as shallow soils and different sampling depths |
Part B: methodology for determining or estimating the values of soil descriptors
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Soil descriptor |
Reference methodology |
Minimum methodological criteria |
Validated transfer function required (if using a methodology different from the reference methodology)? |
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Soil texture (clay, silt and sand content – needed for the determination of other descriptors and related ranges) |
ISO 11277 Determination of particle size distribution in mineral soil material – Method by sieving and sedimentation |
Not applicable |
YES |
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Electrical conductivity |
Option 1: ISO 11265 Determination of the specific electrical conductivity Option 2: saturated soil paste extract (eEC) measurement method (FAO SOP: GLOSOLAN-SOP-08(2)) |
Not applicable |
YES |
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Soil erosion rate |
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Soil erosion rate estimation shall take into account all actions taken to mitigate or compensate the erosion risk, including post-fire mitigation measures Soil erosion rate estimation shall include all relevant erosion processes such as erosion by water, wind, harvest and tillage Soil erosion by water shall be assessed by considering the following factors:
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Not applicable |
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Soil erosion by wind shall be assessed by considering the following factors:
Soil erosion by management practices such as tillage or export of biomass shall be quantitatively assessed based on a methodology either available in the scientific literature or publicly available |
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Soil Organic Carbon (SOC) |
ISO 10694 Determination of organic and total carbon after dry combustion, ensuring all carbon is incinerated SOC shall be calculated by determining the total carbon content and subtracting the carbon present as carbonate, which shall be determined in accordance with ISO 10693 |
Not applicable |
YES |
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SOC stocks |
Methodology as set out in Annex V to Regulation (EU) 2018/1999 in accordance with the 2006 IPCC Guidelines for National Greenhouse Gas Inventories |
Not applicable |
YES |
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Bulk density in subsoil |
ISO 11272 for determination of dry bulk density Where an equivalent parameter is chosen, the methodology shall be either a European or international standard where available; if such standard is not available, the methodology chosen shall either be available in the scientific literature or publicly available |
Methodology may be refined depending on the proportion of coarse fragments |
YES |
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Extractable phosphorus |
Preferred: ISO 11263 for spectrometric determination of phosphorus soluble in sodium hydrogen carbonate solution (P-Olsen) Other methods may be used as an alternative |
Not applicable |
YES |
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For heavy metals: ISO 54321: Aqua Regia Optional: bioavailable fractions of contaminants, such as ISO 17586 using dilute nitric acid |
For contaminants other than heavy metals: use European or international standards where available; if such standard is not available, the methodology chosen shall either be available in the scientific literature or publicly available |
For heavy metals: YES For contaminants other than heavy metals: not applicable if European or international standards are not available |
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Soil water holding capacity, air capacity and saturated hydraulic conductivity |
Methodology to determine the value for one sample point:
Option 1: LABORATORY: ISO 11274 for determination of the water-retention characteristic Option 2: ESTIMATION: apply pedotransfer functions requiring input variables such as particle size distribution, bulk density, soil organic carbon concentration |
Minimum criteria for estimating the total soil water holding capacity, the air capacity and the saturated hydraulic conductivity of a soil unit or on a river basin or sub-basin scale:
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YES (for point value) |
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Option 1: LABORATORY: ISO 17313: Determination of hydraulic conductivity of saturated porous materials Option 2: ESTIMATION: apply pedotransfer functions requiring input variables such as particle size distribution, bulk density, soil organic carbon concentration |
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Nitrogen in soil |
Option 1: ISO 11261 for determination of total soil nitrogen using a modified Kjeldahl method Option 2: ISO 13878 for determination of total nitrogen by dry combustion |
Not applicable |
YES |
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Soil acidity |
ISO 10390 for determination of pH in H2O, KCl and CaCl2 extract |
Not applicable |
YES |
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Base saturation and exchangeable concentrations of sodium, potassium, calcium and magnesium |
ISO 11260 for determination of effective cation exchange capacity and base saturation level using BaCl2 |
Not applicable |
YES |
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Bulk density in ‘topsoil’ (A-horizon(3)) |
ISO 11272 for determination of dry bulk density |
Methodology may be refined depending on the proportion of coarse fragments |
YES |
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Soil descriptors linked to soil biodiversity and biological activity |
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Use European or international standards where available; if such standard is not available, the methodology chosen shall either be available in the scientific literature or publicly available |
Not applicable |