Type: Node / Formalized Expectation
Working Definition: A rule is a formalized specification that governs action, interpretation, or status within a defined domain — stating a condition, permission, prohibition, requirement, or constitutive relation that applies to a class of cases and carries a recognized basis for enforcement, challenge, or appeal.
Function in the Grammar: A rule is a norm that has been enacted. Where a norm is a shared expectation — operative through social recognition and informal enforcement — a rule is formally specified: enacted through a recognized procedure, applied to a defined class of cases, and enforced through institutional mechanisms. Rules translate the normative expectations of a community into legible, contestable, applicable standards. They are the grammar made operational: not merely what a community expects, but what it formally requires, what constitutes compliance, and what constitutes departure.
Rules may be regulative or constitutive. Regulative rules govern behavior that could exist without the rule — they impose conditions, prohibitions, or requirements on pre-existing action. Constitutive rules create the very possibility of the action or status they govern — without the rule, the action or status cannot occur. This distinction is treated in depth in the Constitutive Rule entry; Rule is the broader concept that encompasses both.
Formal Pattern
Rule(R) iff
R specifies: Condition(c), Action-type(T), Effect(e)
R has Scope(D): the domain of cases to which R applies
R was enacted through a recognized procedure in Institution(I) or Constitution(K)
R is formally specified: its content can be stated, consulted, and applied
R is applicable: given Condition(c), Effect(e) follows for cases in D
R carries: AuthoritySource(R), EffectiveDate(R), AmendsOrSupersedes history
RegulativeRule(R): R governs T where T can occur independently of R
ConstitutiveRule(R): R creates the possibility of T; T cannot occur without R (or rules like it)
Examples
| Domain | Rule | Regulative or Constitutive |
|---|---|---|
| Law | "Contracts require consideration to be enforceable" | Partly constitutive: defines what a binding contract is |
| Corporate governance | "CFO approval required for purchases over $10,000" | Regulative: purchasing existed before the threshold |
| Science / publishing | "Papers must be peer-reviewed before publication" | Regulative: papers existed before the requirement; partly constitutive for "published paper" status |
| Religious institutions | "Three witnesses are required for a valid marriage ceremony" | Constitutive: the legal validity of the ceremony is created by the rule |
| Digital governance | "All AI acts require a receipt within the same session" | Regulative: AI acts could occur without the receipt requirement; constitutive for "governed AI act" status |
| Games | "In chess, a player wins by checkmating the opponent" | Constitutive: winning-by-checkmate exists only within chess |
| Ordinary life | "In this household, dinner dishes must be washed before 9pm" | Regulative: dishes existed before the rule |
Distinctions
Rule ≠ Norm. A norm is an operative expectation — shared, enforced through social recognition, potentially informal. A rule is a formalized norm — enacted through procedure, formally specified, enforced through institutional mechanisms. The same content may be both a norm (operative through social pressure) and a rule (enacted and formally enforceable). Norms can be broken without anyone invoking a formal violation; rules create a defined path for finding and responding to non-compliance.
Rule ≠ Law. Law is a specific class of rule enacted by the state and backed by state enforcement. Rules are broader: they govern institutions that are not states, in domains that law does not reach. Bylaws, editorial policies, bridge rules, household agreements, and community norms-formalized-as-rules are all rules that are not law.
Rule ≠ Policy. A policy is a governing principle or operational guideline, often at a higher level of abstraction than a rule. Policies guide judgment; rules specify what applies in defined cases. A data privacy policy is a governing principle; the specific rules that implement it specify what must be disclosed, when, to whom. In practice, the terms overlap; in the grammar, the distinction matters when asking whether a case is determined by the rule or requires judgment informed by the policy.
Rule ≠ Commitment. A commitment is a specific bilateral obligation created by a recognized act — one actor bound to another for a specific performance. A rule applies to a class of actors in a class of situations. An actor may have commitments and also be subject to rules; the two are additive, not synonymous.
Rule ≠ Constitutive Rule. A constitutive rule is a specific type of rule: one that creates the possibility of the action or status it governs. All constitutive rules are rules; not all rules are constitutive. Regulative rules govern pre-existing behavior without creating it. The Rule entry is the broader concept; Constitutive Rule is the special case. The distinction is treated in depth in the Constitutive Rule entry.
Rule ≠ Value. A value is an abstract orientation — what an agent or community holds to be important or good. A rule is specific and applicable: given this condition, this effect follows. Values inform rules but are not themselves rules; a rule without a value behind it may be arbitrary, but a value without a rule behind it is not itself enforceable.
Common Failure Modes
| Mode | Description |
|---|---|
| Rule without uptake | A rule is formally enacted but is not actually applied — actors do not consult it, institutions do not enforce it, and departures go unaddressed. The rule has formal existence but no operational reality. Where to look: rules that are cited in constitutional documents but never appear in actual institutional decisions. |
| Rule-as-fact confusion | A rule that was enacted at a specific time, in a specific institution, is treated as a natural fact — as if it were true independently of having been enacted. This makes the rule unquestionable when it should be subject to amendment, challenge, or repeal. Where to look: rules whose origins and enactment procedures are never discussed. |
| Rule without scope clarity | A rule applies to a class of cases but the class is not well-defined. Actors cannot determine whether their case falls within the rule's scope; enforcement is inconsistent. Where to look: rules that produce disagreement about whether they apply to a specific case. |
| Rule proliferation | An institution produces rules at a rate that exceeds its capacity to maintain, apply, and enforce them. The rule system becomes opaque; actors cannot determine which rules apply; compliance becomes selective. Where to look: institutions with large numbers of rules that are not organized, indexed, or regularly reviewed. |
Intellectual Lineage
Rule draws on H.L.A. Hart's account of rules in The Concept of Law (1961), particularly his distinction between primary rules, which govern conduct, and secondary rules, which govern how primary rules are recognized, changed, and adjudicated. This entry's separation of Rule from Norm, a rule as a norm that has been enacted through recognized procedure, follows Hart's picture of formal rules as a distinct, procedurally validated layer above informal social expectation, without adopting his fuller theory of legal system.
Cross-References
- Constitutive Rule — the special case: rules that create the possibility of the action or status they govern
- Norm — rules are formalized norms; norms are the upstream source from which rules derive
- Institution — institutions enact and maintain rules; rules are the operational form of institutional grammar
- Constitution — a constitution is a specific class of rule: the foundational rules that govern the institution itself
- Authority — rules must be enacted by actors with authority to do so; rules carry their enacting authority
- Commitment — rules govern classes of actors; commitments bind specific actors to specific beneficiaries
- Exception — exceptions depart from rules; the exception presupposes the rule it departs from
- Amendment — rules may be amended; amendments follow the rule's governing procedure
- Breach — breach is failure to comply with a binding rule or commitment
- Count-As — Count-As is the operator that expresses constitutive rules; rules specify when Count-As relations hold
- Judgment — rules guide judgment; judgment applies rules to specific cases and determines what follows
- Obligation: a rule may ground an attributable requirement when its bearer, scope, and conditions apply
- Standard: may be incorporated by a Rule to specify how conformity, sufficiency, or quality is compared
- Consequence: may be constituted by a Rule when its conditions make one institutional effect follow from another