EAC Trade Rules and the Court's Interpretive Powers

The East African Court of Justice did not send Customs Union and Common Market disputes away from its courtroom. In East African Law Society v Secretary General of the East African Community, it drew a more careful line: specialist mechanisms and national authorities can deal with matters assigned to them, while the EACJ retains the final interpretive role over the Treaty and its Protocols. That distinction matters to traders, citizens and lawyers choosing where to take a dispute.

Contents

A jurisdiction question behind two protocols

Brief facts and the legal question

The Court and the advocates

What the Court decided

The rule of law stated plainly

Why the decision matters to a real dispute

The interpretive hierarchy and its limits

Earlier and later authority

What litigators can take from the record

National law and current practice

No dissent and the judgment’s reach

The practical lesson

How to distinguish an assigned dispute from a Treaty question

The case as a guide to forum choice

A regional precedent with practical value

Why “special mechanism first” is too broad

A jurisdiction question behind two protocols

The East African Law Society asked the First Instance Division to examine two provisions. Article 24(1) of the Customs Union Protocol assigns defined trade-remedy functions to the Committee on Trade Remedies and related mechanisms. Article 54(2) of the Common Market Protocol promises people redress before competent judicial, administrative or legislative authorities under national constitutions, laws and procedures. The Society argued that these routes could place decisions on Community law outside the EACJ and fragment the interpretation of regional obligations.

This was a structural challenge, not a claim that one particular customs assessment or individual Common Market right had been wrongly decided. The remedy sought was broad: declarations that the provisions conflicted with the EAC Treaty and should be treated as invalid. The Court therefore had to decide how the Treaty distributes interpretive authority while leaving room for practical machinery to administer the Customs Union and protect rights under the Common Market.

Brief facts and the legal question

The applicant was a regional professional association representing lawyers and law societies across East Africa. It challenged the legal effect of the dispute-resolution arrangements in the two protocols, relying in particular on Treaty Articles 5, 8, 27, 33, 34, 38 and 151. The Secretary General opposed the challenge, maintaining that the provisions did not remove the Court’s Treaty jurisdiction and that the protocols created practical mechanisms for implementation.

The central question was whether Article 24(1) of the Customs Union Protocol and Article 54(2) of the Common Market Protocol transferred or excluded the EACJ’s authority to interpret and apply the Treaty and its Protocols. A second question followed: did those provisions contradict the Treaty, especially its rules on jurisdiction, precedence, preliminary references and dispute settlement? The question was not whether every customs or Common Market disagreement must begin in Arusha.

The Court and the advocates

The judgment was delivered by Principal Judge Johnston Busingye, Deputy Principal Judge Mary Stella Arach-Amoko and Judges John Mkwawa, Jean Bosco Butasi and Isaac Lenaola. The record identifies Professor Ssempebwa as counsel for the Society and Mr Kaahwa as counsel for the Secretary General. The Court records that both sides supplied written submissions and oral highlights, and expressly commended counsel’s research and presentation.

The Society’s strongest point was institutional: Treaty interpretation needs one authoritative centre if Community rules are to mean the same thing across Partner States. Counsel connected that concern to Articles 27 and 33 and to the risk of divergent national decisions. The respondent’s counsel made a useful concession in substance: the EACJ’s interpretive role remained intact, while specialized forums could apply rules within their assigned scope. That answer gave the Court a route to preserve both regional coherence and everyday national remedies.

What the Court decided

The Court rejected the claim that either protocol had ousted the EACJ’s interpretive jurisdiction. It held that the Customs Union Protocol’s trade-remedy committee could handle specified subjects such as rules of origin, anti-dumping, subsidies, countervailing measures and safeguards. But if interpretation or application of the Treaty, the Protocol or its annexes arose, an aggrieved party could still seek the EACJ’s authoritative interpretation. The committee’s stated finality did not erase that route.

For the Common Market Protocol, the Court treated national courts and other competent authorities as useful places for individuals to seek redress over rights and liberties. That role did not give them final control over the meaning of the regional Treaty. The EACJ said the duty of national courts to seek a preliminary ruling under Article 34 continued in Common Market disputes. It concluded that the protocols’ mechanisms neither excluded the Court’s interpretive jurisdiction nor contradicted the Treaty. Each party bore its own costs because the case was public-interest litigation.

The rule of law stated plainly

The rule from the case is this: a protocol may create specialist or national mechanisms to administer particular Community rights and technical issues, but it cannot silently displace the EACJ’s Treaty-based authority to interpret and apply the Treaty and its Protocols. Where a dispute depends on the meaning of Community law, the EACJ’s interpretive jurisdiction remains available; national courts may decide matters within their powers and refer necessary Treaty questions for a preliminary ruling under Article 34.

The rule does not say that the EACJ is a first-stop tribunal for every customs classification, safeguard complaint or individual Common Market claim. A claimant must identify the legal issue and the remedy sought. The Treaty’s jurisdictional provisions, including Articles 27 and 30, matter. The Court’s authority is anchored in interpretation and application of the Treaty, and the Protocol mechanisms remain operative within the subjects the Treaty and Protocols assign to them.

Why the decision matters to a real dispute

For a trader, the first practical task is to identify what is actually contested. A dispute about a product’s origin, a trade remedy or a technical assessment may belong initially before a Customs Union committee under the Protocol and its dispute-settlement regulations. If the dispute turns on what the Treaty or Protocol means, the EACJ may still be asked to interpret that rule. A party should not assume that the specialist procedure either blocks the Court entirely or can be skipped without consequence.

For a person asserting a Common Market right, Article 54(2) points toward domestic redress under the relevant national system. That can be quicker and closer to the facts: the national forum may hear evidence, review an administrative act and grant remedies available under local law. But where the court must settle a Treaty question that bears on the outcome, Article 34 supplies a bridge to the EACJ. The case’s practical insight is a division of labour: national institutions decide local claims, specialist bodies handle their assigned tasks, and the regional court maintains legal uniformity.

The interpretive hierarchy and its limits

The Society’s argument drew force from Article 33(2), which gives EACJ decisions on Treaty interpretation and application precedence over national-court decisions on a similar matter. Article 38 also restricts alternative settlement of Treaty disputes once such a matter is before the Court. The judgment read these provisions as safeguards against competing interpretations, not as an instruction to abolish national remedies. Article 27(1) supplies the Court’s initial Treaty jurisdiction, subject to its express proviso concerning jurisdiction conferred on Partner State organs.

This reading avoids two extremes. If national tribunals were barred from applying Common Market rights, individuals would have no effective local route to enforce the Protocol. If every national authority could finally define Community law for itself, the same Treaty language might acquire different meanings in different states. The Court’s solution leaves the ordinary work of administration and redress where it is workable, while preserving a regional route for authoritative interpretation.

Earlier and later authority

The judgment followed the EACJ’s earlier decision in Attorney General of the United Republic of Tanzania v Africa Network for Animal Welfare, Appeal No. 3 of 2011. In that case the Appellate Division distinguished areas expressly assigned to specific mechanisms under the Customs Union Protocol from environmental Treaty obligations not reserved to those mechanisms. In the present case, the First Instance Division applied that distinction: express subject-specific arrangements matter, but they do not become a general bar to Treaty interpretation.

The ruling also fits the wider preliminary-reference design in Article 34. It makes national adjudication and EACJ interpretation complementary. Later EACJ decisions, including the Court’s preliminary-ruling work in Attorney General of Uganda v Tom Kyahurwenda, Case Stated No. 1 of 2014, continued to describe Articles 6 to 8 as legally meaningful obligations capable of consideration by national courts, while retaining the EACJ’s regional interpretive function. This is a continuing architecture rather than a one-case exception.

What litigators can take from the record

The applicant framed the challenge as a Treaty coherence problem and identified the clauses that appeared to create parallel forums. That strategy brought the institutional stakes into focus. A stronger pleading in a future case would also map each type of dispute to the body that can decide it, separate a technical application question from a Treaty interpretation question, and show a concrete conflict or practical barrier. A broad request to invalidate a dispute mechanism risks treating useful local remedies as if they were inherently unlawful.

The respondent’s position succeeded on the core jurisdiction issue because it accepted the EACJ’s continued interpretive role and persuaded the Court that the challenged institutions had narrower functions. Counsel facing a similar dispute should be precise about finality: final within an administrative mechanism does not necessarily mean final on Treaty meaning. A party alleging that a national or technical mechanism has overstepped should identify the exact Treaty provision, the point of interpretation, the record showing the mechanism’s act and the legally available procedural route.

National law and current practice

The case principally interprets regional instruments. It does not establish one uniform national procedure for every Partner State. Article 54(2) expressly depends on each state’s constitution, laws and administrative procedures, so the available forum, limitation periods, evidence rules and remedies must be checked in the country where the challenged act occurred. In Kenya, for example, Article 2(6) of the Constitution recognizes ratified treaties as part of Kenyan law; the judgment itself referred to that provision while discussing the Treaty’s place in national legal systems. Other states’ domestic implementation rules require their own analysis.

The regional instruments remain the starting point: the Treaty for the Establishment of the East African Community, the Customs Union Protocol and the Common Market Protocol, together with the specific dispute-settlement regulations or national legislation that implement them. A current practitioner should check the consolidated text and amendments in force at the time of the dispute. The case remains useful as a guide to forum choice and institutional relationship, but it does not remove current filing rules or make every alleged Protocol breach automatically admissible before the EACJ.

No dissent and the judgment’s reach

The published First Instance judgment is a decision of the Court, signed by the five judges named above. It contains no separate dissenting opinion. That matters because readers should not attribute a competing judicial interpretation to the panel. The main qualification comes from the majority’s own reasoning: special mechanisms are real and may decide assigned matters, even though they do not settle final Treaty meaning.

The decision is persuasive and practically important for jurisdictional analysis. It clarifies the relationship between procedures but does not decide the merits of a specific tariff, safeguard measure, customs penalty or denial of Common Market rights. Nor does it give parties a license to file parallel proceedings without regard to exhaustion, admissibility, time limits or the powers of each forum. Its contribution is a usable map, not a universal shortcut.

The practical lesson

A lawyer or business should begin by writing the dispute in one sentence: is the issue a technical application assigned to a specialized mechanism, a person’s claim for redress under national law, or a question about what the EAC Treaty or Protocol means? Then identify the exact enabling provision, the proper first forum and whether a preliminary ruling or Treaty reference is needed. Keep the pleadings focused on the remedy the chosen body can lawfully grant.

East African Law Society v Secretary General of the East African Community preserves a balance that regional integration needs. It protects practical local and specialist routes while preventing them from becoming isolated islands of Community law. The central lesson is not “choose one court for all disputes.” It is to use the right forum for the work it has been assigned, and to bring questions of regional legal meaning to the court entrusted with keeping that meaning coherent.

How to distinguish an assigned dispute from a Treaty question

Imagine that an importer challenges a decision on the origin of goods. The immediate question may concern documents, production records and the technical criteria applied under Customs Union rules. The Committee on Trade Remedies and the mechanisms in Annex IX may be the correct place to determine that issue in the first instance. If, however, the Committee relies on an interpretation of the Treaty that affects the scope of its authority, or a party says the Protocol itself conflicts with the Treaty, the EACJ interpretation route remains relevant. The point is to characterize the actual issue, not simply to choose the forum with the broadest name.

A similar distinction applies to a person alleging unequal treatment under the Common Market Protocol. Article 54(2) provides a path to redress before competent national authorities. A domestic court can make findings about what happened and apply national remedies. If deciding the claim requires a uniform answer about the meaning of a regional freedom, the national court may refer that question to the EACJ under Article 34. This sequence respects both the person’s access to a local remedy and the Community’s need for consistent law.

The case as a guide to forum choice

The Court’s reasoning distinguishes jurisdiction from procedure. The existence of a competent national forum does not itself eliminate the EACJ’s Treaty jurisdiction; equally, the existence of the EACJ does not automatically cancel local decision-making. A claimant must still satisfy the procedural conditions governing the chosen route. Under the Treaty, a private person may bring a legality reference under Article 30 within the applicable time limit. A preliminary reference under Article 34 is made by a national court when an interpretation question arises in a case before it. These procedures serve different purposes.

It is important not to read the judgment as requiring exhaustion of every administrative option before approaching the EACJ in every case. The Court did not decide a fact-specific exhaustion objection or prescribe one universal filing order. It explained that assigned mechanisms and national remedies can function without excluding the EACJ’s power to interpret the Treaty. Whether exhaustion, admissibility, time limits or parallel proceedings matter will depend on the particular instrument and claim. A careful opinion should state what the judgment decided and what it left open.

A regional precedent with practical value

The decision’s main contribution is organizational. Regional integration depends on specialist knowledge, local access and a common legal vocabulary. Customs experts may be better placed to assess technical trade evidence; a local court may be better placed to receive witnesses and review an administrative record; the EACJ is better placed to settle the meaning of Treaty language that must apply throughout the Community. The judgment makes these functions compatible instead of treating them as mutually exclusive jurisdictions.

That approach protects litigants from a costly forum mistake. Someone who files a trade-remedy claim as if it were an abstract Treaty reference may fail to present the technical record needed for relief. Someone who treats a local interpretation of Community law as final may overlook the preliminary-reference mechanism. Counsel should explain at the outset what each forum can decide, what evidence it can receive, and which kind of order the client needs. This is not merely procedural housekeeping; it helps the client obtain an effective decision.

Why “special mechanism first” is too broad

A useful qualification follows from the decision’s language. The Court did not announce a universal rule that Customs Union or Common Market disputes must always begin before a special committee, nor did it abolish those mechanisms in favour of ordinary EACJ references. It examined the specific functions in Article 24 and Article 54. The committee handles defined technical trade matters; national bodies give local redress; the EACJ retains Treaty interpretation. The correct forum depends on the provision, the type of dispute and the remedy sought.

This matters because a shorthand case summary can send a litigant in the wrong direction. A technical trade remedy may need evidence and procedure under the Protocol’s dedicated mechanism. A person seeking redress for an individual Common Market right may need to begin in a national authority or court. A party raising a Community-wide Treaty interpretation question may need the EACJ, directly where Treaty procedure allows or through an Article 34 preliminary reference. The case is most useful when treated as a map of concurrent functions, not a slogan about forum priority.

Sources mentioned

Treaty for the Establishment of the East African Community, arts 5, 8, 27, 30, 33, 34, 38, 75 and 151; Protocol on the Establishment of the East African Community Customs Union, art 24 and Annex IX; Protocol on the Establishment of the East African Community Common Market, art 54; East African Community Customs Union (Dispute Settlement Mechanism) Regulations; Attorney General of the United Republic of Tanzania v Africa Network for Animal Welfare, Appeal No. 3 of 2011; Attorney General of Uganda v Tom Kyahurwenda, Case Stated No. 1 of 2014; Constitution of Kenya, art 2(6).

Suggested citation

Ronald Serwanga, “EAC Trade Rules and the Court's Interpretive Powers”, East Africa Legal Insight (11 October 2026).