Environmental assessments: legal, technical and digital keys

  • Environmental impact assessment analyzes the effects of projects on the environment, health, heritage, and their interaction.
  • Law 21/2013 establishes ordinary and simplified assessments according to annexes and possible impacts, including Natura 2000 Network.
  • The environmental impact statement is binding, has a limited validity, and is complemented by an environmental monitoring program.
  • Public environmental portals use technical and analytical cookies with informed consent to improve services.

environmental assessments

The environmental assessments They have become a key element in authorizing projects, works, and activities that may affect the environment. We're not just talking about reviewing a few documents: it's a technical and legal process with many phases, types of studies, and binding decisions that determine whether a project goes ahead and under what conditions. A thorough understanding of how this entire system works is essential for government agencies, developers, and the public alike.

Furthermore, when we talk about modern administrative procedures, it is impossible to ignore issues such as the use of cookies and data protection on public portals where environmental information is consulted or files are processed. Portals such as that of the Ministry for Ecological Transition and the Demographic Challenge (MITECO) or those of the autonomous communities integrate analytics and consent management tools that are also worth knowing about in order to navigate with peace of mind.

What is an environmental assessment and what is it used for?

environmental impact assessment

When talking about environmental impact assessment (EIA) Reference is made to a administrative Procedure This process analyzes the significant effects a project may have on the environment. This assessment is not limited to flora and fauna, but encompasses a very broad range of factors: population, human health, biodiversity, geodiversity, land, soil and subsoil, air, water, climate, climate change, landscape, material assets and cultural heritage, as well as the interaction between all of them.

The EIA always fits within the substantive authorization procedure of the project. That is, it is not an isolated procedure, but an integrated phase in the overall processing of the work or activity. In cases where the action is subject to a responsible declaration or prior notification, the environmental assessment is adapted to these administrative control mechanisms, but it remains mandatory when required by law.

In practice, environmental assessment aims to ensure that potential adverse impacts These impacts must be identified, assessed, and, where appropriate, avoided, minimized, or offset. This requires detailed studies, consultations with government agencies and the public, and a final decision from the environmental authority, which acts as a filter before the final authorization of the project by the competent authority.

From a legal perspective, the EIA is also a way to guarantee the right of access to environmental information Public participation, by requiring the disclosure of the content of the studies, allowing allegations and subjecting to technical and social scrutiny the decisions that may significantly alter the environment.

Types of environmental impact assessment: ordinary and simplified

types of environmental assessments

State legislation, specifically the Law 21/2013, of December 9, on environmental assessmentThe law distinguishes between two main types of Environmental Impact Assessments (EIAs) for projects: the standard environmental impact assessment and the simplified environmental impact assessment. The choice between one or the other is not arbitrary; it is determined by the type and scale of the project, as outlined in the law's annexes.

La ordinary environmental impact assessment It applies to projects included in Annex I of Law 21/2013. These are actions with a high potential impact, which require a very complete environmental impact study, a public information process and a detailed analysis by the environmental body before formulating the corresponding environmental impact statement.

La simplified environmental impact assessment This applies to projects listed in Annex II of Law 21/2013, as well as to other cases determined by both basic state regulations and regional environmental prevention laws. In the simplified procedure, an assessment is made as to whether the project may have significant adverse effects; if it is determined that it may, it may be subject to standard environmental assessment.

In addition to state regulations, the autonomous communities have their own rules. In Castile and León, for example, the consolidated text of the Environmental Prevention Law, approved by Legislative Decree 1/2015, includes an Annex I which also includes projects subject to simplified environmental impact assessment, even if they are not in the annexes of Law 21/2013.

How to check if a project is subject to EIA

To find out if a specific project that is to be developed in the territory of an autonomous community, such as Castilla y LeonSince it must undergo an environmental impact assessment, it is advisable to follow a logical order of checks, relying on the annexes of current legislation. This is not a trivial screening process, because state and regional regulations are involved, and each annex has specific thresholds and categories.

In Castile and León, the basic procedure to verify whether a project is subject to environmental impact assessment usually follows these successive checks:

  • Review Annex I of Law 21/2013Environmental assessment. If the project appears in this annex, an ordinary environmental impact assessment must be carried out.
  • If it is not in Annex I, See Annex II of Law 21/2013If it is included in it, a simplified environmental impact assessment should be processed, although the developer may choose to process it as an ordinary one.
  • If it does not appear in these annexes either, check Annex I of Legislative Decree 1/2015, which approves the consolidated text of the Environmental Prevention Law of Castile and León. If the project is included, it is subject to a simplified environmental impact assessment.
  • If it doesn't fit any of the above scenarios, then you have to analyze whether the project could affect the Natura 2000 NetworkThis is done by consulting the relevant directorate general for natural areas. If there is a significant impact, a simplified environmental impact assessment is also processed, with the option of following the standard procedure.

This order of steps helps to more reliably resolve the question of whether or not a project should undergo environmental assessment. Even so, due to the technical and legal complexity Regarding the annexes, it is common for promoters to seek specialized advice to avoid mistakes that could jeopardize the procedure later on.

Natura 2000 Network and its influence on environmental assessment

One particularly delicate point is that of the impact on Natura 2000 Network (RN2000)Even projects that do not appear directly in the annexes of Law 21/2013 may end up being subject to environmental impact assessment if it is considered that they may significantly affect the values ​​of these protected areas.

In Castile and León, the promoter of a project not directly subject to EIA must request from the competent directorate general for natural areas a Impact Assessment Report on the Natura 2000 NetworkThis procedure is regulated by Decree 6/2011, of February 10, which defines the specific procedure for evaluating the impact on RN2000 of plans, programs and projects within the community.

If that report concludes that there is no possibility of appreciable impact on the Natura 2000 network, the project is not subject to environmental impact assessment, at least for this reason. But if, on the contrary, it is found that there may be impacts, the project will not be subject to environmental impact assessment. significant direct or indirect effects For the network, a simplified environmental impact assessment must be initiated, without prejudice to the option of choosing the ordinary route.

In the event that the project ends up being subject to an EIA, the corresponding study must include a detailed analysis of the repercussions on the values ​​that motivated the declaration of the affected RN2000 sites. This involves assessing the direct, indirect, cumulative and synergistic impacts with other projects or activities, resulting in particularly demanding environmental assessments.

Project modifications and division of actions

Not only new projects are subject to environmental assessment; so are... modifications to already authorized projects These procedures may be integrated into them. The general rule is that it will be analyzed whether the modification, by itself, constitutes a threshold or an impact of sufficient magnitude to require an EIA.

Any change to the characteristics of a project listed in Annex I or Annex II of Law 21/2013 that by itself meets the thresholds of Annex I must be submitted to ordinary environmental impact assessmentIt doesn't matter if the project was already authorized or even executed: if the modification reaches those levels, the process restarts as an ordinary EIA.

On the other hand, they undergo simplified environmental impact assessment Modifications to projects listed in Annex I or II that, while not reaching the thresholds in the preceding paragraph, may generate significant adverse effects on the environment. Regional regulations may establish reference values ​​to quantify what is meant by "significant."

In Castile and León, Article 49 of the consolidated text of the Environmental Prevention Law, approved by Legislative Decree 1/2015, states that changes that represent an increase of more than 50% are considered significant, among other cases. emissions into the atmosphere, discharges into public waterways, generation of waste or use of natural resourcesImpacts on Natura 2000 sites or cultural heritage are also considered relevant.

Furthermore, the law contemplates the case of projects that are presented in a fractionalizedWhen several projects, considered together, reach the thresholds of Annex II through the accumulation of their magnitudes or dimensions, the entire group must undergo a simplified environmental impact assessment. This provision aims to prevent the practice of splitting projects into smaller parts to circumvent the EIA.

The environmental impact statement: nature and validity

The environmental impact assessment concludes, in the ordinary modality, with a environmental impact statement (EIS)This declaration is not an authorization in itself, but a pronouncement by the environmental body on the viability of the project from an environmental point of view, which may be favorable or unfavorable.

Although it is not a license, the environmental impact statement has the character binding for the substantive body that authorizes the project. That is, a project subject to ordinary EIA cannot obtain authorization if the DIA is unfavorable, and if it is favorable it must comply with the conditions, protective, corrective and compensatory measures imposed in said declaration.

Regarding who prepares the Environmental Impact Assessment (EIA), the responsibility depends on the scope and the administrative level that authorizes the project. For projects in Castile and León, the declaration can be issued by:

  • El ministry with environmental responsibilities, when the authorization or approval of the project corresponds to the General State Administration.
  • La competent environmental department of the autonomous community, when the project must be approved by bodies of the community itself.
  • La Territorial Delegation of the Junta de Castilla y León of the affected province, when so provided by the regional regulations, directly or by delegation, unless it concerns projects that affect more than one province, in which case the regional ministry will be competent.

The Environmental Impact Assessment (EIA) does not have unlimited validity. If, once published in the corresponding official gazette, the execution of the project or activity has not commenced within the specified period four yearsThe declaration loses its effect. In that case, the developer will have to reopen the environmental impact assessment procedure, unless an extension of the validity of the EIA is agreed upon.

A project is considered to have started its execution when, having obtained all the required authorizations, the work has materially begun. works or the assembly of the facilities necessary, and this is recorded before the Administration. The developer is obliged to inform the environmental body of the start date of the execution, since the calculation of the validity of the declaration depends on this date.

Environmental monitoring program: objectives and flexibility

An essential element of any well-conducted environmental impact assessment is the Environmental Monitoring Program (PVA)The regulations require that it form part of the minimum content of the environmental impact study, so it is not an optional addition, but a mandatory element to control the correct application of environmental measures.

The PVA is drafted by project promoter Its main purpose is to design a set of tasks and controls to verify the effectiveness of the protective, corrective, and compensatory measures outlined in the environmental impact statement. These monitoring tasks should determine whether these measures are sufficient or if, on the contrary, they need to be strengthened or new ones introduced.

The execution of the program also falls to the promoter, and not the substantive body, except in the specific case of a public works project where both roles coincide. The program usually includes, among other aspects, the parameters to be measured, the frequency of controls, the data collection methods and the acceptable limits for each environmental indicator.

The PVA is dynamic in nature. It may be subject to changes throughout the project's life cycle when required by the entry into force of new environmental regulations or when it is necessary to adapt to new scientific knowledge about the ecosystems involved. Likewise, the environmental authority may modify, either on its own initiative or at the request of the developer, both the protective and corrective measures and the monitoring program itself if the results show that the initial plan falls short.

This adaptability is key, because many environmental impacts are complex and can manifest themselves differently than anticipated. A well-planned and properly implemented Environmental Impact Assessment (EIA) is, in practice, a tool for anticipate problems and react in time before irreversible damage occurs.

Use of cookies on public environmental portals

Beyond on-the-ground projects, there are also the websites of environmental administrations, such as that of miteco.gob.esThey handle relevant information and require transparency regarding how user browsing data is processed. Therefore, they typically have a specific policy on the use of cookies.

Cookies are files that are downloaded to the device Cookies are collected by users when they visit a website. They are used to store and retrieve information about browsing activity, remember preferences, and measure usage statistics. In the context of information society services, they are essential for providing advanced functionalities and improving the user experience.

Depending on who manages the domain from which they are sent and who processes the data, a distinction is made between: first-party cookies and third-party cookiesThe former are managed by the owner of the website being visited, while the latter belong to external entities (for example, analytics tools or social networks) that process the information for their own purposes, usually measurement or advertising.

Another classification criterion considers the length of time they remain stored in the browser. Thus, there are session cookieswhich are deleted when the browser is closed, and persistent cookieswhich are maintained for a defined period, which can last for months or even longer, depending on the site configuration and the browser itself.

Finally, we can talk about several types of cookies depending on the purpose for which the data obtained is processed: technical cookies (essential for the basic functioning of the website), personalization cookies (to remember language, settings, etc.), analysis cookies (to compile usage statistics), advertising cookies (to manage ad spaces) and behavioral advertising cookies (which analyze browsing habits to display advertising tailored to the user's profile).

Cookies used on the MITECO portal

The website of the Ministry for Ecological Transition and the Demographic Challenge uses, among others, cookies associated with the Adobe Analytics toolThis analytics solution helps understand how visitors interact with the site. It uses a small set of cookies to collect usage data and generate statistics, always without personally identifying users or sharing information with third parties outside the service.

These analytics cookies are not essential for the portal to function, so they may to be accepted or rejectedHowever, they are very useful for obtaining data that allows us to improve the quality and suitability of the content and services offered. For details about these cookies and their privacy policy, the portal refers to the specific information on “Analytics Cookies” and “Cookies and Privacy” from Adobe.

On pages that incorporate content related to the social network X (formerly Twitter), cookies are only created if the user is logged into that network. To learn more about what data is collected and how it is processed, the user should review the "Privacy" section of X, which explains the types of cookies and similar technologies used on its platform.

In addition, the portal downloads a technical cookie called miteco-complianceThis is a first-party, session cookie designed to manage user consent regarding the use of cookies on the website. Its function is to remember which users have accepted or rejected non-essential cookies, preventing the information notice from being repeatedly displayed to those who have already expressed their decision.

This technical cookie is considered essential for proper functioning of the portal, so its use is mandatory. Without it, it would not be possible to keep track of the user's cookie preferences and the notice would appear constantly, hindering the browsing experience.

Acceptance and rejection of the cookie policy

To comply with regulations on data protection and information society services, MITECO allows the user Accept or reject non-essential cookies For the operation of the portal. Only technical cookies, such as the consent cookie, are activated without the need for express authorization, as they are necessary to provide the requested service.

When the user accesses the portal for the first time, a message is displayed prominently on the screen with a basic explanation of the cookie policy and various configuration options. Through this panel, you can accept the use of all cookies, reject them except for essential ones, or customize the selection by activating only certain categories.

This granular consent scheme responds to the recommendations of the Spanish Agency for Data Protection, which in its Guide on the use of cookies insists on the need to provide clear information, offer real options and avoid mechanisms that can be considered as forced consent.

It is important to note that the user can Review the cookie policy at any time and modify their preferences. In fact, many websites, including those related to environmental assessments, include visible links to update consent and regain access to the settings panel.

Some websites also explicitly state that the use of first-party and third-party cookies is intended to to offer a better experience and serviceThe user is invited to tick an acceptance box after reading the policy, making it clear that they can consult that information whenever they want before making a decision.

This entire legal, technical, and procedural framework ensures that environmental assessments and their associated management, both in the physical world and in the digital environment, function effectively. clear rules and guarantees For all parties involved: government agencies, developers, and citizens. Understanding the different types of Environmental Impact Assessments (EIAs), the steps to determine whether a project should be assessed, the role of the Natura 2000 network, the validity of environmental impact statements, the importance of monitoring programs, and how browsing data is handled on official websites allows for greater confidence and the ability to demand that economic development goes hand in hand with respect for the environment.

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