People new to the region often use CARICOM and the OECS as if they were two names for the same thing. They are not. Grenada sits inside three overlapping arrangements: the Caribbean Community (CARICOM), the Organisation of Eastern Caribbean States (OECS) and the Eastern Caribbean Currency Union (ECCU), whose central bank is the Eastern Caribbean Central Bank (ECCB). Each has its own treaty, its own membership list and its own reach into daily life.
The practical difference is large. Whether a Jamaican nurse can work in St George's without a work permit, whether a Lucian can move to Grenville and stay indefinitely, and why a bank loan in Grenada is priced in a currency that has not moved against the US dollar since 1976 all depend on which circle applies. This explainer sets out the three layers, how deep each one goes, and what that means for anyone doing business, hiring or settling in Grenada.
CARICOM: the wide circle of fifteen
CARICOM is the broadest of the three. It grew out of the Treaty of Chaguaramas, signed in Trinidad in 1973, and Grenada joined in 1974, the year of its independence. Today the Community has fifteen full members stretching from Belize and Suriname to the Bahamas, plus several associate members among the British overseas territories. Its secretariat sits in Georgetown, Guyana, and policy is set by the Conference of Heads of Government, which meets at least once a year.
The Revised Treaty of Chaguaramas, signed in 2001, created the CARICOM Single Market and Economy (CSME). On paper the CSME covers free movement of goods, services, capital and certain categories of skilled people, a common external tariff and the right of a business from one member state to set up in another. In practice implementation is uneven: some parts, like duty-free trade in qualifying regional goods, work daily; others, like a single regional currency, remain long-term ambitions with no timetable. CARICOM works mostly by agreement between sovereign governments, so a decision in a communiqué only bites once each country passes its own law.
The OECS: the tighter eastern core
The OECS is much smaller and much closer-knit. It was created by the Treaty of Basseterre in 1981 by the former British Windward and Leeward Islands, and its headquarters, the OECS Commission, is in Castries, Saint Lucia. The independent full members are Antigua and Barbuda, Dominica, Grenada, St Kitts and Nevis, Saint Lucia and St Vincent and the Grenadines, with Montserrat as a full member that is a British territory. Anguilla, the British Virgin Islands, Martinique and Guadeloupe are associate members.
The Revised Treaty of Basseterre, signed in 2010 and in force from early 2011, turned the OECS into an Economic Union. Its headline result for ordinary people is free movement: citizens of the participating independent states can enter each other's territory, live there indefinitely and work without a work permit. The OECS also runs joint services that small states could not afford alone, such as pooled purchasing of pharmaceuticals and shared diplomatic missions in some capitals. Because the members are tiny and similar, the OECS has historically moved faster and further than CARICOM as a whole.
The ECCU and ECCB: one money for eight
The third circle is monetary. The Eastern Caribbean Currency Union has eight members: the six independent OECS states plus Anguilla and Montserrat. All of them use the Eastern Caribbean dollar, issued by the Eastern Caribbean Central Bank, which is based in Basseterre, St Kitts. The British Virgin Islands, an OECS associate, uses the US dollar instead and is not part of the ECCU, which shows that the circles do not line up neatly.
The EC dollar has been fixed at EC$2.70 to US$1 since 1976. The ECCB does not run an independent interest-rate policy in the way the US Federal Reserve or the Bank of England does; its main job is to keep the peg credible by holding enough foreign reserves, and to supervise the commercial banks of all eight members under a harmonised Banking Act. For Grenada this means monetary policy is shared and largely fixed, while fiscal policy, meaning taxes and spending, stays national. Investors should read that as stability in the exchange rate, with the government budget as the main source of country risk.
Who belongs where: a quick comparison
Grenada. In all three: CARICOM full member, OECS full member and Economic Union participant, ECCU member using the EC dollar.
Trinidad and Tobago, Jamaica, Barbados, Guyana. CARICOM members, but not in the OECS or the ECCU. Each has its own currency and its own central bank, so trade with them involves exchange-rate risk that intra-ECCU trade does not.
Anguilla and Montserrat. Inside the ECCU and using the EC dollar, linked to the OECS, and connected to CARICOM in different capacities, while remaining British territories with London responsible for defence and foreign affairs.
British Virgin Islands. An OECS associate and a CARICOM associate member, but outside the currency union because it uses the US dollar.
Martinique and Guadeloupe. French overseas regions that are OECS associate members. They use the euro and sit inside the European Union, which makes them a bridge to Europe but also means EU rules, not OECS free movement, govern entry for most purposes.
Haiti and Suriname. Full CARICOM members with very different legal and language traditions; neither belongs to the OECS.
What each circle means for business and residents
For someone hiring in Grenada, CARICOM matters through the free movement of skills: a qualifying graduate, nurse, teacher or artisan from another member state may work with a skills certificate rather than a standard work permit. The OECS goes further: citizens of the participating OECS states do not need either, so a Vincentian can take a job in Grenada much as a Grenadian would. Everyone else, including North Americans and Europeans, follows the national work-permit system.
For a company, CARICOM's right of establishment and the regional rules of origin shape whether goods made in Grenada can enter Trinidad, Jamaica or Barbados duty-free. The ECCU matters for pricing and treasury: contracts within the eight members carry no currency risk, and a loan from a Grenadian bank in EC dollars is effectively a loan in a US-dollar proxy. The OECS matters through harmonised regulation in areas such as telecommunications, civil aviation and banking, which means one set of rules covers several markets. A business plan that mixes these up tends to overestimate how open the wider region really is.
Common misunderstandings to avoid
The most frequent error is assuming CARICOM gives every citizen of a member state the right to live and work anywhere in the Community. It does not, at least not yet for all members. CARICOM nationals generally receive a definite entry and a stay of up to six months on arrival, but long-term residence and work depend on skills categories or national permission. Only within the OECS Economic Union is free movement close to complete, and even there spouses, dependants and access to public services have been phased in step by step.
A second error is treating the EC dollar as a CARICOM currency. Barbados, Jamaica and Trinidad each have their own dollar, and prices in those currencies are not interchangeable with EC dollars. A third is assuming that a regional decision has the force of law in Grenada the moment it is announced. Regional heads agree; national parliaments legislate. Before relying on any regional right for a hire, a move or an investment, confirm the current position with the Grenada Immigration Department, the relevant ministry or a licensed attorney, because rules have been changing in recent years.
A last trap is assuming that the three circles move together. They do not. A country can deepen its commitments within the OECS while CARICOM as a whole stalls, and a small group of CARICOM states can agree to go further on free movement among themselves while others wait, as Barbados, Belize, Dominica and St Vincent and the Grenadines did from October 2025. When reading regional news, always ask which body made the decision, which members it binds and whether Grenada has passed the implementing law.
Frequently asked questions
Is Grenada a member of both CARICOM and the OECS?
Yes. Grenada joined CARICOM in 1974 and was a founding member of the OECS in 1981. It is also part of the Eastern Caribbean Currency Union, so it uses the EC dollar issued by the Eastern Caribbean Central Bank in St Kitts.
Does the OECS have its own passport?
No single OECS passport is issued. Each member state issues its own national passport. Under OECS arrangements, nationals of participating states can travel within the union on national identification in some cases, but airlines and immigration practice vary, so carrying a passport remains the safe choice.
Why does Trinidad not use the EC dollar?
Trinidad and Tobago is a CARICOM member but has never been part of the Eastern Caribbean Currency Union. It has its own central bank and its own floating-managed currency. The ECCU grew out of the shared currency of the smaller former British territories in the eastern Caribbean.
Where are the main regional headquarters?
The CARICOM Secretariat is in Georgetown, Guyana. The OECS Commission is in Castries, Saint Lucia. The Eastern Caribbean Central Bank is in Basseterre, St Kitts. The Caribbean Court of Justice sits in Port of Spain, Trinidad and Tobago.
Does regional membership help a foreign investor in Grenada?
Indirectly. Shared banking supervision, a stable pegged currency and harmonised regulation lower some risks. Market access to other CARICOM states depends on rules of origin and right-of-establishment rules, so investors should take specialist advice on how a Grenada-based business would actually be treated elsewhere in the region.
