{"id":921453,"date":"2026-09-24T10:00:00","date_gmt":"2026-09-24T08:00:00","guid":{"rendered":"https:\/\/djya2ldob4.wpdns.site\/?page_id=921453"},"modified":"2026-10-27T09:19:02","modified_gmt":"2026-10-27T08:19:02","slug":"og13","status":"publish","type":"page","link":"https:\/\/www.cqop.com\/en\/list-of-soa-categories\/general-works\/og13\/","title":{"rendered":"SOA Category OG13"},"content":{"rendered":"\n\n<div class=\"cqop-v6 cqop-v6-soa-categoria-og13\" data-v6-page=\"Categoria-OG1\">\n\n<div id=\"contenuto\" class=\"cqop-v6-pannello-829311a\">\n    \n\n<div aria-hidden=\"true\" class=\"cqop-v6-pannello-fd08351 gb-text\"><\/div>\n\n\n\n    \n\n<div aria-hidden=\"true\" class=\"cqop-v6-pannello-d3705ba gb-text\"><\/div>\n\n\n\n    \n\n<div class=\"cqop-v6-contenuto-06a0e85\">\n      <nav style=\"--separator: &quot;\/&quot;\" class=\"cqop-breadcrumbs wp-block-breadcrumbs\" aria-label=\"Breadcrumbs\"><ol><li><a href=\"https:\/\/www.cqop.com\/en\/\">Home<\/a><\/li><li><a href=\"https:\/\/www.cqop.com\/en\/list-of-soa-categories\/\">List of SOA categories<\/a><\/li><li><a href=\"https:\/\/www.cqop.com\/en\/list-of-soa-categories\/general-works\/\">SOA general works categories<\/a><\/li><li><span aria-current=\"page\">SOA Category OG13<\/span><\/li><\/ol><\/nav>\n\n      \n\n<div class=\"cqop-v6-pannello-f3875ab\">\n        \n\n<span class=\"cqop-v6-pannello-4855609 gb-text\">OG13<\/span>\n\n\n\n        \n\n<span class=\"cqop-v6-pannello-ea96d22 gb-text\">General works categories<\/span>\n\n\n\n      <\/div>\n\n\n\n      \n\n<h1 class=\"cqop-v6-titolo-b35a3b5 gb-text\">SOA Category <span class=\"cqop-v6-pannello-8a3115e\">OG13<span aria-hidden=\"true\" class=\"cqop-v6-pannello-f4fc0bb\"><\/span><\/span><\/h1>\n\n\n\n      \n\n<p class=\"cqop-v6-testo-7496375 gb-text\">Naturalistic engineering \u2013 SOA qualification for environmental restoration and land protection<\/p>\n\n\n\n\n\n    <\/div>\n\n\n\n  <\/div>\n\n\n\n\n  \n\n<div class=\"cqop-v6-pannello-13e79de\">\n    \n\n<div class=\"cqop-v6-griglia-642d0e4\">\n      \n\n<div>\n        \n        \n\n<p class=\"cqop-v6-testo-f811e2c gb-text\">SOA Category OG13 covers all interventions in naturalistic engineering aimed at protecting the environment, restoring degraded areas, and mitigating hydrogeological risk. It includes works designed to stabilize slopes, consolidate riverbanks, restore vegetation, rehabilitate quarries and landfills, and safeguard ecosystems through environmentally compatible engineering solutions.<\/p>\n\n\n\n\n<img class=\"gb-media-cqogillusog131 cqop-v6-pannello-e34122a cqop-og-illustration\" src=\"https:\/\/www.cqop.com\/wp-content\/uploads\/2026\/10\/og13-illustrazione-1-hero-blu-bordeaux.webp\" alt=\"Naturalistic engineering and ecological restoration \u2014 OG13 illustration\" width=\"840\" height=\"360\" loading=\"lazy\" decoding=\"async\" style=\"display:block;width:100%;max-width:700px;height:auto;margin:28px auto;object-fit:contain;\"\/>\n\n\n\n\n<\/div>\n\n\n\n      \n\n<div class=\"cqop-v6-pannello-136555f\">\n        \n<img role=\"presentation\" loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.cqop.com\/wp-content\/uploads\/2026\/10\/OG13-bianco-bordeaux-chiaro.webp\" alt=\"\" aria-hidden=\"true\" width=\"201\" height=\"201\" class=\"cqop-og-original-icon\" style=\"display:block;width:120px;height:120px;max-width:100%;object-fit:contain;margin:0 0 28px;\" \/>\n\n        \n\n<div class=\"cqop-v6-pannello-96ce454 gb-text\">Simulate the cost of SOA certification<\/div>\n\n\n\n        \n\n<a href=\"https:\/\/www.cqop.com\/en\/online-services\/fee-and-requirements-calculation\/\" class=\"cqop-v6-pulsante-5eba899 cqop-v6-state-6d47db8 gb-text\">Calculate fees and requirements<\/a>\n\n\n\n      <\/div>\n\n\n\n    <\/div>\n\n\n\n  <\/div>\n\n\n\n\n  \n\n<div class=\"cqop-v6-pannello-1d12dfc\">\n    \n\n<div class=\"cqop-v6-griglia-74a4c6d\">\n      \n\n<div class=\"cqop-v6-titolo-sticky-1c8b9f9\">\n        \n        \n\n<h2 class=\"cqop-v6-titolo-ecc189a gb-text\">Soil protection and ecological restoration: what OG13 covers<\/h2>\n\n\n\n      <\/div>\n\n\n\n      \n\n<div>\n\n\n<img class=\"gb-media-cqogillusog132 cqop-v6-pannello-e34122a cqop-og-illustration\" src=\"https:\/\/www.cqop.com\/wp-content\/uploads\/2026\/10\/og13-illustrazione-2-palificata-blu-bordeaux.webp\" alt=\"Naturalistic engineering and ecological restoration \u2014 OG13 illustration\" width=\"840\" height=\"448\" loading=\"lazy\" decoding=\"async\" style=\"display:block;width:100%;max-width:700px;height:auto;margin:28px auto;object-fit:contain;\"\/>\n\n\n\n\n<p class=\"cqop-v6-testo-7febc91 gb-text\">OG13 applies to a broad range of works that integrate civil engineering with environmental protection:<\/p>\n\n\n\n\n\n<ul class=\"cqop-v6-pannello-f72340a\">\n\n<li class=\"cqop-v6-griglia-eaa3518 gb-text\">\n              <span aria-hidden=\"true\" class=\"cqop-v6-pannello-17317d0\">01<\/span>\n              Natural slope stabilization: interventions to secure unstable or landslide-prone slopes using naturalistic engineering techniques such as timber cribbing, live staking, brush layering, vegetated earthworks, and reforestation. These measures reinforce the soil while maintaining ecological continuity.<\/li>\n\n\n\n            \n\n<li class=\"cqop-v6-griglia-eaa3518 gb-text\">\n              <span aria-hidden=\"true\" class=\"cqop-v6-pannello-17317d0\">02<\/span>\n              Riverbank protection and naturalistic river works: eco\u2011compatible stabilization of watercourses using vegetated structures, bioengineering systems, dry\u2011stone masonry, and riparian vegetation to reduce erosion and enhance habitats.<\/li>\n\n\n\n            \n\n<li class=\"cqop-v6-griglia-eaa3518 gb-text\">\n              <span aria-hidden=\"true\" class=\"cqop-v6-pannello-17317d0\">03<\/span>\n              Reforestation and protective afforestation: restoration of burned or degraded slopes to reduce runoff, stabilize soil, and re\u2011establish natural cover.<\/li>\n\n\n\n            \n\n<li class=\"cqop-v6-griglia-eaa3518 gb-text\">\n              <span aria-hidden=\"true\" class=\"cqop-v6-pannello-17317d0\">04<\/span>\n              Environmental rehabilitation of quarries, landfills, and degraded sites: reshaping of terrain, backfilling, and vegetation to restore ecological balance and reinsert the site into the landscape.<\/li>\n\n\n\n            \n\n<li class=\"cqop-v6-griglia-eaa3518 gb-text\">\n              <span aria-hidden=\"true\" class=\"cqop-v6-pannello-17317d0\">05<\/span>\n              Hydro\u2011forestry interventions: small hydraulic and forestry works to stabilize mountain basins, including wooden or stone check dams, vegetated channels, agricultural terracing with live crib structures, and erosion\u2011control systems.<\/li>\n\n\n\n            <\/ul>\n\n\n\n\n\n<img class=\"gb-media-cqogillusog133 cqop-v6-pannello-e34122a cqop-og-illustration\" src=\"https:\/\/www.cqop.com\/wp-content\/uploads\/2026\/10\/og13-illustrazione-3-sponda-blu-bordeaux.webp\" alt=\"Naturalistic engineering and ecological restoration \u2014 OG13 illustration\" width=\"840\" height=\"448\" loading=\"lazy\" decoding=\"async\" style=\"display:block;width:100%;max-width:700px;height:auto;margin:28px auto;object-fit:contain;\"\/>\n\n\n<\/div>\n\n\n\n    <\/div>\n\n\n\n  <\/div>\n\n\n\n\n  \n\n<div class=\"cqop-v6-pannello-13e79de\">\n    \n\n<div class=\"cqop-v6-contenuto-c7714c8\">\n      \n      \n\n<h2 class=\"cqop-v6-titolo-e915111 gb-text\">Categories related to OG13<\/h2>\n\n\n\n      \n\n<div class=\"cqop-v6-griglia-9e34a50\">\n\n<div class=\"cqop-v6-pannello-12843ab\">\n            \n\n<div class=\"cqop-v6-pannello-947e167 gb-text\">OG8 \u2013 River and hydraulic works:<\/div>\n\n\n\n            \n\n<p class=\"cqop-v6-testo-8d82677 gb-text\">OG8 concerns structural hydraulic interventions (levees, canals, retention basins). Compared to OG13, it focuses on \u201chard\u201d engineering, while OG13 focuses on naturalistic solutions. Often the two categories operate together\u2014for example, concrete check dams (OG8) combined with vegetated riverbank restoration (OG13).<\/p>\n\n\n\n          <\/div>\n\n\n\n          \n\n<div class=\"cqop-v6-pannello-12843ab\">\n            \n\n<div class=\"cqop-v6-pannello-947e167 gb-text\">OG12 \u2013 Environmental remediation:<\/div>\n\n\n\n            \n\n<p class=\"cqop-v6-testo-8d82677 gb-text\">OG12 covers technical remediation (landfills, geomembranes, decontamination). OG12 manages pollution and containment; OG13 handles ecological and landscape restoration. In landfill closures, OG12 completes the capping and systems, and OG13 designs the final landscape and vegetation.<\/p>\n\n\n\n          <\/div>\n\n\n\n          \n\n<div class=\"cqop-v6-pannello-12843ab\">\n            \n\n<div class=\"cqop-v6-pannello-947e167 gb-text\">OS21 \u2013 Special structural works:<\/div>\n\n\n\n            \n\n<p class=\"cqop-v6-testo-8d82677 gb-text\">includes retaining walls, micropiles, anchors, and slope stabilization systems. It is frequently combined with OG13 when landslide risk requires both structural consolidation (OS21) and ecological restoration (OG13).<\/p>\n\n\n\n          <\/div>\n\n\n\n          \n\n<div class=\"cqop-v6-pannello-12843ab\">\n            \n\n<div class=\"cqop-v6-pannello-947e167 gb-text\">OS12-B \u2013 Rockfall protection systems:<\/div>\n\n\n\n            \n\n<p class=\"cqop-v6-testo-8d82677 gb-text\">includes passive protection such as rockfall nets and barriers. In integrated projects, OG13 provides active bioengineering stabilization, while OS12\u2011B delivers passive safety systems.<\/p>\n\n\n\n          <\/div>\n\n\n\n          <\/div>\n\n\n\n\n<div class=\"cqop-v6-griglia-ac0de1b\">\n        \n\n        \n\n      <\/div>\n\n\n\n    <\/div>\n\n\n\n  <\/div>\n\n\n\n\n  \n\n\n\n<div id=\"faq\" class=\"cqop-v6-pannello-481eee7\">\n    \n\n<div class=\"cqop-v6-griglia-28a732f\">\n      \n\n<div>\n        \n\n<h2 class=\"cqop-v6-titolo-2c72ce6 gb-text\">FAQ SOA Category OG13<\/h2>\n\n\n\n\n\n<div class=\"cqop-category-download cqop-category-download-minimal cqop-category-download-faq\">\n\n\n<a class=\"gb-text cqop-category-download-button\" href=\"https:\/\/www.cqop.com\/wp-content\/uploads\/2026\/10\/Modulistica-UK.pdf\" target=\"_blank\" rel=\"noopener noreferrer\" aria-label=\"Download PDF technical data sheets \u2014 opens in a new tab\">\n<svg role=\"presentation\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"22\" height=\"22\" viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"1.7\" stroke-linecap=\"round\" stroke-linejoin=\"round\" aria-hidden=\"true\" focusable=\"false\"><path d=\"M12 3v12m-5-5 5 5 5-5M4 16v5h16v-5\"\/><\/svg>\n\n\n<span class=\"gb-text\">Download PDF technical data sheets<\/span>\n<\/a>\n\n<\/div>\n\n\n\n      <\/div>\n\n\n\n      \n\n<div>\n        \n<div class=\"wp-block-essential-blocks-accordion cqop-faq-accordion root-cqop-faq-94011-0\"><div class=\"eb-parent-wrapper eb-parent-cqop-faq-94011-0 \"><div class=\"eb-accordion-container cqop-faq-94011-0\" data-accordion-type=\"accordion\" data-tab-icon=\"\" data-expanded-icon=\"\" data-transition-duration=\"500\"><div class=\"eb-accordion-inner\">\n<div class=\"wp-block-essential-blocks-accordion-item cqop-faq-94011-0-1 eb-accordion-wrapper\" data-clickable=\"false\"><div class=\"eb-accordion-title-wrapper eb-accordion-title-wrapper-cqop-faq-94011-0\" tabindex=\"0\"><div class=\"eb-accordion-title-content-wrap title-content-cqop-faq-94011-0\"><h2 class=\"eb-accordion-title\">What is the official \u201cdeclaratory\u201d of OG13?<\/h2><\/div><\/div><div class=\"eb-accordion-content-wrapper eb-accordion-content-wrapper-cqop-faq-94011-0\"><div class=\"eb-accordion-content\">\n<div class=\"gb-text cqop-faq-answer\"><p>OG13 includes all works intended to secure natural land and environmental areas\u2014slopes, rivers, forests\u2014using ecological and environmentally compatible methods.<\/p>\n<p><strong>Declaratory (official definition):<\/strong> It covers the construction, maintenance, or rehabilitation of point\u2011specific and widespread works necessary for land protection and for restoring compatibility between \u201csustainable development\u201d and ecosystems. It includes all works related to botanical and zoological activities. Examples include naturalistic, botanical, and ecological restoration; soil recovery in quarries and peatlands; restoration of hydrographic basins; mitigation of hydrogeological instability through planting; works for slope stability; reforestation; agricultural land improvement; and revegetation of roadside, railway, quarry, and landfill embankments.<\/p>\n<\/div>\n<\/div><\/div><\/div>\n\n\n<div class=\"wp-block-essential-blocks-accordion-item cqop-faq-94011-0-2 eb-accordion-wrapper\" data-clickable=\"false\"><div class=\"eb-accordion-title-wrapper eb-accordion-title-wrapper-cqop-faq-94011-0\" tabindex=\"0\"><div class=\"eb-accordion-title-content-wrap title-content-cqop-faq-94011-0\"><h2 class=\"eb-accordion-title\">How OG13 differs from OG8 and OG12<\/h2><\/div><\/div><div class=\"eb-accordion-content-wrapper eb-accordion-content-wrapper-cqop-faq-94011-0\"><div class=\"eb-accordion-content\">\n<div class=\"gb-text cqop-faq-answer\"><p>OG8 focuses on traditional hydraulic works (levees, channels, concrete structures). OG12 focuses on technical and environmental remediation (contaminated soils, landfills, treatment systems). OG13 focuses on naturalistic and ecological engineering\u2014vegetation, bioengineering structures, and landscape restoration.<\/p>\n<\/div>\n<\/div><\/div><\/div>\n\n\n<div class=\"wp-block-essential-blocks-accordion-item cqop-faq-94011-0-3 eb-accordion-wrapper\" data-clickable=\"false\"><div class=\"eb-accordion-title-wrapper eb-accordion-title-wrapper-cqop-faq-94011-0\" tabindex=\"0\"><div class=\"eb-accordion-title-content-wrap title-content-cqop-faq-94011-0\"><h2 class=\"eb-accordion-title\">Why OG13 is strategic today<\/h2><\/div><\/div><div class=\"eb-accordion-content-wrapper eb-accordion-content-wrapper-cqop-faq-94011-0\"><div class=\"eb-accordion-content\">\n<div class=\"gb-text cqop-faq-answer\"><p>OG13 responds directly to climate change, hydrogeological risk, and the need for sustainable land management. Naturalistic engineering increases resilience, improves environmental quality, and offers long\u2011term stability with low environmental impact.<\/p>\n<\/div>\n<\/div><\/div><\/div>\n<\/div><\/div><\/div><\/div>\n\n<\/div>\n\n\n\n    <\/div>\n\n\n\n  <\/div>\n\n\n\n\n  \n\n\n  \n\n<div class=\"cqop-v6-pannello-5e842af\">\n    \n<svg focusable=\"false\" role=\"presentation\" aria-hidden=\"true\" class=\"cqop-v6-icona-71ff866\">\n      <defs>\n        <pattern id=\"mattoniOG1\" width=\"72\" height=\"36\" patternUnits=\"userSpaceOnUse\">\n          <rect x=\"0\" y=\"2\" width=\"32\" height=\"14\" fill=\"rgba(255,255,255,0.022)\"><\/rect>\n          <rect x=\"36\" y=\"2\" width=\"32\" height=\"14\" fill=\"rgba(255,255,255,0.022)\"><\/rect>\n          <rect x=\"18\" y=\"20\" width=\"32\" height=\"14\" fill=\"rgba(255,255,255,0.022)\"><\/rect>\n          <rect x=\"-18\" y=\"20\" width=\"32\" height=\"14\" fill=\"rgba(255,255,255,0.022)\"><\/rect>\n          <rect x=\"54\" y=\"20\" width=\"32\" height=\"14\" fill=\"rgba(255,255,255,0.022)\"><\/rect>\n        <\/pattern>\n      <\/defs>\n      <rect width=\"100%\" height=\"100%\" fill=\"url(#mattoniOG1)\"><\/rect>\n    <\/svg>\n\n    \n\n<div class=\"cqop-v6-griglia-7a21026\">\n      \n\n<div class=\"cqop-original-cta-copy\">\n\n<p class=\"cqop-v6-testo-3c2b5d5 gb-text\">OG13 represents the core of Italy\u2019s naturalistic land\u2011protection interventions. If your company operates in environmental protection, slope stabilization, or ecological restoration, securing SOA OG13 qualification is essential to participate in key projects nationwide. It is a strategic investment combining sustainability, technical competence, and long\u2011term environmental value.<\/p>\n\n\n\n\n<p class=\"cqop-category-conclusion-accent cqop-v6-testo-23dd753 gb-text\">Invest in sustainability, qualify your company and help build the future.<\/p>\n\n\n<\/div>\n\n\n\n      \n\n<div class=\"cqop-v6-pannello-4cdb9ad\">\n        \n\n<a href=\"https:\/\/www.cqop.com\/en\/contacts\/\" class=\"cqop-v6-pulsante-5eba899 cqop-v6-state-f859560 gb-text\">Contact us<\/a>\n\n\n\n        \n\n      <\/div>\n\n\n\n    <\/div>\n\n\n\n  <\/div>\n\n\n\n\n  <\/div>\n\n\n\n\n","protected":false},"excerpt":{"rendered":"<p>OG13 General works categories SOA Category OG13 Naturalistic engineering \u2013 SOA qualification for environmental restoration and land protection SOA Category OG13 covers all interventions in naturalistic engineering aimed at protecting the environment, restoring degraded areas, and mitigating hydrogeological risk. It includes works designed to stabilize slopes, consolidate riverbanks, restore vegetation, rehabilitate quarries and landfills, and &#8230; <a title=\"SOA Category OG13\" class=\"read-more\" href=\"https:\/\/www.cqop.com\/en\/list-of-soa-categories\/general-works\/og13\/\" aria-label=\"Read more about SOA Category OG13\">Read more<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"parent":921039,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_acf_changed":false,"_eb_attr":"","_eb_data_table":"","footnotes":""},"class_list":["post-921453","page","type-page","status-publish"],"acf":{"h1_seo":""},"publishpress_future_workflow_manual_trigger":{"enabledWorkflows":[]},"_links":{"self":[{"href":"https:\/\/www.cqop.com\/en\/wp-json\/wp\/v2\/pages\/921453","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.cqop.com\/en\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.cqop.com\/en\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.cqop.com\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.cqop.com\/en\/wp-json\/wp\/v2\/comments?post=921453"}],"version-history":[{"count":6,"href":"https:\/\/www.cqop.com\/en\/wp-json\/wp\/v2\/pages\/921453\/revisions"}],"predecessor-version":[{"id":922228,"href":"https:\/\/www.cqop.com\/en\/wp-json\/wp\/v2\/pages\/921453\/revisions\/922228"}],"up":[{"embeddable":true,"href":"https:\/\/www.cqop.com\/en\/wp-json\/wp\/v2\/pages\/921039"}],"wp:attachment":[{"href":"https:\/\/www.cqop.com\/en\/wp-json\/wp\/v2\/media?parent=921453"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}