One clear fact: the public action of simple nullity can remove unlawful administrative acts without time limits, and anyone may file it under Article 137 CPACA.
I work daily with state contracting and sanctioning matters to protect your rights when an acto administrativo oversteps higher norms or procedure. I explain how I diagnose an act, pick the right medio de control, and build an evidence plan.
On this sitio web I offer step-by-step guidance rooted in CPACA and the procedimiento administrativo contencioso. Expect clear language, precise citations, templates, and checklists you can use in practice.
I outline outcomes: declaring nullity can remove the acto from legal effect, and when needed we seek restablecimiento for monetary and non-monetary remedies. Contact me through the site for tailored advice when you suspect an administrative decision violates your derecho.
Key Takeaways
- The public action of simple nullity may be filed by any person and has no caducity.
- I provide practical steps for contesting an acto administrativo under CPACA.
- The site offers templates, checklists, and evidence planning for contracting and sanctioning cases.
- Declaring nullity can remove the act from legal life; restoration claims add remedies.
- Timely and strategic filing improves judicial protection; contact me for tailored support.
Why I Wrote This How-To Guide on Administrative Nullity in Colombia Today
I wrote this practical guide to respond directly to the frequent preguntas I receive from companies and individuals facing problems in state contracting and sanctioning. My goal is to give clear steps so clients can decide fast and act with confidence.
Simple nullity is a public action anyone may bring, and it often avoids the need to exhaust administrative remedies. That practical fact drives much of my advice on litigation timing and strategy in the contencioso administrativo.
I built this sitio to explain when to use simple nullity versus other routes, how Law 2080 of 2021 changes court timing, and what evidence to preserve early. I also demystify likely costs, key milestones, and how your internal administración can align budgets with litigation needs.
- I answer the most common preguntas from tenderers and sanctioned parties.
- I show procedural pivots and preservation tips for digital contracting platforms.
- I translate legal doctrine into plain steps you can follow in the procedimiento administrativo.
Foundations: What an acto administrativo is and who reviews it in the contencioso administrativo
I clarify how a unilateral administrative decision gains force and when courts may step in to review it.
Definition. An acto administrativo is a one-sided decision by an authority exercising administrative function. It often shapes procurement, sanctions, permits, and registry entries.
From administrative function to judicial review
The Jurisdicción de lo Contencioso Administrativo handles review through local juzgados, tribunales and the Council of State. This is the core route for administrativo contencioso claims and for the medio de control of nulidad when constitutionality is at issue.
Judges, sections, and decision rules
Judges issue autos and sentences; salas and secciones decide collegiate matters. Law 2080 of 2021 refined these reglas and sped certain electoral measures.
Court | Primary Function | Common Decisions |
---|---|---|
Juzgado Administrativo | First-instance review of individual claims | Admisibility, precautionary measures, sentences |
Tribunal | Appellate and collegiate rulings | Review of autos, conflict resolution |
Council of State | Final administrative jurisdiction; some constitutional checks | Sentences, unconstitutionality review for general norms |
- I track impediments and recusations under the código procedimiento administrativo to protect impartiality.
- Common omissions I see include missing reports or flawed delegation of competence; these support later review.
- Understanding which body reviews a decision determines venue, panel makeup, and timing for suspensions or relief.
Practically, I build the expediente early. I request records, preserve evidence, and map which medios de control fit each case. That planning makes judicial scrutiny effective and timely.
nulidad actos administrativos Colombia
In practice, public rules with broad reach require a distinct strategy to test legality and venue.
Public action and scope: general acts and exceptional particular acts under artículo 137
Any persona may challenge general measures of carácter general that bind many people. I target regulations, manuals, resoluciones marco, and service circulars when their contenido conflicts with higher normas.
Exceptionally, particular decisions can be reviewed under artículo 137 when no automatic restablecimiento applies, when public goods must be recovered, or when grave social or economic effects occur.
How constitutional, legal, and procedural normas interact
I map the act’s legal basis up to the Constitution to spot contradictions. Procedural rules in the CPACA then shape admissibility, and causales must be pleaded clearly.
- I explain why this public action protects legality beyond private benefit.
- I test whether contenido is regulatory or internal; that affects justiciability.
- I warn: a claim seeking automatic restablecimiento will be redirected to the correct medio de control.
Issue | When it fits Article 137 | Practical outcome |
---|---|---|
Regulatory circulars | Carácter general and binding contenido | Direct public challenge; seek annulment |
Particular acts (exceptional) | Grave public impact or recovery of public goods | Admissible if criteria met; narrow remedies |
Demands implying restablecimiento | Not proper here | Redirect to nullity and restablecimiento route |
Grounds you can use: causales de nulidad of an administrative act

My practice begins by mapping the precise legal defects that remove a decision from legal life. I then match each causal to the procurement or sanctioning facts in the file.
Infringement of higher norms and lack of competence
I test whether the decision rests on the right legal normas or if the issuer acted beyond its powers. I gather regulations, internal delegations, and signature chains to show improper delegation or ultra vires exercises of power.
Forma irregular and violation of audience and defense
Formal defects matter when they affect guarantees. Missing motives, omitted signatures, or absent publication can be decisive.
In sanctioning cases I check notifications, access to the expediente, and hearing records. Failing to allow defense or file review often proves a procedural breach.
False motivation and desviación de atribuciones propias
I compare the expediente with the stated grounds to prove false motivation. Facts that are distorted or unsupported by evidence reveal an invalid reasoning chain.
When authorities use powers for alien purposes, such as changing award criteria under a supposed clarification, I document purpose and effect to show desviación de atribuciones propias.
- I tie each causal to concrete evidence — reports, emails, witness notes, and registry extracts.
- I explain each flaw clearly in pleadings so the court can link causales to the requested relief.
- Combining well-chosen causales strengthens persuasion without diluting focus.
Practical tip:Prioritize material defects that affect rights and relief. That shapes an effective, targeted claim and improves chances of court relief for the claimant.
Choosing the right path: acción de simple nulidad vs. nulidad y restablecimiento del derecho
I choose the remedy that best matches your goal. If you need only to void a regulatory measure, a public annulment often fits. That route targets a nulidad acto as a structural problem rather than personal loss.
When there is no caducity and no prior administrative remedy required
Simple annulment is a public action with no caducity and usually does not require prior administrative steps. It suits challenges to manuals, circulars, and broad rules that harm many.
When you need restoration and indemnification for harm
Seek restablecimiento when you must restore a specific derecho and claim indemnización for quantifiable loss. Typical cases are exclusion from an award or a sanction that caused damage to a parte.
Issue | Preferred remedy | Key proof |
---|---|---|
General procurement manual | Simple annulment | Legal contradiction, policy scope |
Harmed bidder by award decision | Annulment + restablecimiento | Damages report, contract records |
Procedural defect with personal harm | Restablecimiento and indemnización | Evidence of loss and causation |
The structure of the demanda shifts: seeking only annulment narrows factual proof. Adding restablecimiento raises burdens on causation, valuation, and witness evidence. The código procedimiento also affects representation and filing format in the administrativo contencioso route.
My tip: do a pre-filing assessment to quantify harm, pick the right medio, and avoid reclassification risks that cost time and remedy windows.
Nullity for unconstitutionality: when decrees face the Council of State instead of the Corte Constitucional

When a government decree clashes with constitutional limits, I bring targeted challenges before the Council of State.
I explain when review belongs to the corte constitucional and when it does not. For decrees of broad carácter, citizens may seek nulidad for direct constitutional breach before the Council of State.
Any persona can file this control. The Council is not limited to the precise artículo pressed by the plaintiff. It may examine the decree as a unit and resolve linked constitutional issues.
I target decrees that reshape procurement or sanction frameworks when they exceed constitutional bounds. My work focuses on systemic harm, legislative history, and the decree’s effect on administrative practice.
- I coordinate parallel litigation to manage risk while review proceeds.
- I request interim measures to preserve rights during the process.
- I draft relief that lets the court address related norms, not just a single clause.
Issue | Council of State Role | Practical Impact |
---|---|---|
General decrees altering procurement rules | Direct review for constitutional compliance | Can reshape contracting across entities |
Decrees with sanctioning reach | Unitary analysis of norms and effects | May affect pending administrative decisions |
Parallel remedies before other courts | Coordination to avoid conflicting orders | Interim strategies protect clients during review |
Step-by-step: how I prepare and file a contencioso administrativo nullity claim
My first move is a focused review of the record to identify which legal errors are provable and urgent. I trace the authoring authority, check competence, and flag any procedural omisión that may support a nulidad acto.
Diagnosis and fit: I test Article 137 fit for particular measures and match causales to the act’s contenido. That choice guides evidence and scope.
Drafting the demanda
I write a precise demanda with facts, legal grounds, and an evidentiary plan linked to each causal. I also prepare requests for precautionary relief showing urgency, fumus boni iuris, and balance of harms.
Filing and early court steps
I follow the código procedimiento and filing reglas: representation, annexes, indexed exhibits, and digital format. I plan for allocation, anticipated subsanación orders, and early autos or sentences that can shape negotiation or compliance.
- I coordinate parallel remedies when strategic.
- I keep a litigation calendar to track hearings and deadlines in the contencioso administrativo docket.
Evidence, measures, and hearings in the procedimiento administrativo contencioso

I focus on turning record gaps and digital traces into persuasive proof at every litigation stage. I map how reasons in the expediente compare to facts, and I expose mismatches with clear exhibits.
Proving false motivation, forma defects, and competence issues
I contrast the act’s stated motives with source documents to show false motivation. I flag data inconsistencies, expert reviews, and missing evidence that undermine the reasoning.
I document forma irregular through publication logs, signature chains, missing mandatory reports, and registry entries. These items demonstrate procedural lapses that courts treat seriously.
To prove lack of competence I map delegations, internal mandates, and organizational charts. This shows who had authority and where the decision exceeded it.
Precautionary measures and hearings
I request targeted precautionary relief with focused arguments. In electoral disputes I note that salas decide measures cautelares, so I tailor timing and proof accordingly.
I prepare hearings by organizing witness outlines, documentary binders, and demonstratives tied to each causal. I also coordinate expert opinions on scoring, market analysis, or proportionality.
When courts decree proof ex officio, I respond quickly and align with the judge’s scope. Chain-of-custody rules and authenticity protocols for electronic files are essential to withstand objections.
Evidence Type | Purpose | Practical Use |
---|---|---|
Expediente comparison | Show false motivation | Contradictions highlighted in pleadings and exhibits |
Publication logs & signatures | Prove forma irregular | Annexed to demanda; support requests for nullity relief |
Registry and certification records | Attack legal effect based on entries | Invalidate certifications or registrations lacking basis |
Platform logs & usuarios data | Link user actions to procurement outcomes | Audit trail used to challenge scoring or access |
Expert reports | Validate technical points | Support causation, valuation, and proportionality arguments |
Applying nullity in state contracting: from award to liquidation
I map procurement disputes across the contract lifecycle and pick the best route to protect rights. I focus on practical remedies from award to final liquidación.
Challenging award, modification, payment and liquidation acts
I challenge award decisions that misapply evaluation criteria or breach higher ley. I also contest adendas and modifications that change selection conditions without legal basis.
I litigate denial or recognition of invoices at the pago stage and attack liquidation acts that close contracts contrary to fact or law.
When to seek annulment versus annulment plus restoration
Simple public relief works for manuals or general measures with no caducity. When exclusion causes quantifiable harm, I add restablecimiento and damages claims in the administrativo contencioso administrativo forum.
Strategic use of records, registries and users’ data
I mine the registro, SECOP logs, and usuarios activity to show false motivation, competence defects, or omission in the expediente. These traces often prove bias in evaluation.
Phase | Common defect | Remedy |
---|---|---|
Award | Misapplied criteria | Annulment + restablecimiento if harmed |
Modification | Desviación or lack of competence | Annulment of the change |
Liquidation | Incorrect closure of accounts | Reopening and compensation |
I integrate the código procedimiento administrativo and sector rules to frame competence and procedure. I also coordinate parallel administrative requests and objections to build a robust record while preserving court strategy. For tools and templates see my recursos y mecanismos de impugnación.
Sanctioning procedures: defending against fines and administrative penalties

A targeted audit of the sanction file is my first line of defense for any client facing penalties. I check notifications, access to the expediente, and whether the parte had a real chance to be heard.
Due process, audience, and defense in sanctioning acts
I look for omissions such as missing evidence decrees or absent closing arguments. These procedural gaps often erode the validity of the acto administrativo and form the basis of quick relief requests.
Nullity grounds frequently seen in sanctioning resolutions
I pursue causales like irregular form, violation of audience and defense, false motivation, lack of competence, and desviación de atribuciones propias. When enforcement threatens severe harm, I request precautionary measures to pause collection or suspension.
- I tailor defenses to contractors, public servants, and regulated entities as the affected parte.
- I streamline evidence to highlight decisive defects and support targeted relief.
- I align litigation strategy with compliance fixes to reduce future exposure and reputational harm.
For practical templates and guidance on sanctioning procedure, see my page on sanctioning rules and timelines.
My advisory services for Colombian state contracting and sanctioning processes
I help public and private clients navigate complex contracting and sanctioning risks with targeted legal strategy and clear next steps.
What I offer: concise legal diagnosis, tailored strategy memos, and hands-on litigation support for procurement and sanction disputes.
Tailored consulting on CPACA strategy, Article 137 eligibility, and court practice
I assess whether a matter fits artículo 137 or needs a different medio de control under the código procedimiento administrativo.
I prepare focused strategy notes and advise on cautelares, venue, and likely court responses in the procedimiento administrativo contencioso.
End-to-end support: risk review, demand drafting, and litigation follow-through
- I draft demandas, relief requests, and precautionary petitions aligned to court practice.
- I manage procurement disputes from RFP challenges through award, pago, and final liquidación.
- I build evidence plans, quantify indemnización claims, and coordinate experts and witnesses.
- I prepare internal Q&A to answer team preguntas and improve record-keeping for disputes.
Engage me through this sitio web or direct channels for a prompt assessment of your contrato or sanctioning matter. I offer urgent reviews before filing deadlines and clear timelines and budgets for every phase.
Service | Benefit | Typical deliverable |
---|---|---|
Eligibility review | Clear path under CPACA and Article 137 | Written fit memo and next-step plan |
Drafting and filing | Procedural compliance and focused relief | Demand, annexes, and precautionary motions |
Litigation management | Coordinated court strategy and evidence handling | Hearing prep, expert coordination, status reports |
Recovery and valuation | Quantified indemnity claims and negotiation support | Damages report and settlement roadmap |
Conclusion
In closing, I highlight how targeted legal choices can fast-track relief in public contracting and sanctioning matters.
I recap: simple nulidad protects legality and your derecho across procurement and sanction files. Challenges may target general measures of carácter general or, in exceptional cases under artículo 137, particular decisions.
Precise causal selection, firm evidence, and strict compliance with the código procedimiento shape outcomes in the administrativo contencioso administrativo route. Where needed, I pursue a nulidad acto administrativo claim or parallel constitutional arguments.
If you face regulatory or certifying actos, evaluate your file quickly to preserve leverage. Contact me for a focused review; I provide end-to-end support, clear options, and practical advocacy tailored to your objectives.