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NMA code 4291 - Construction d'ouvrages maritimes et fluviaux

2026 reference

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NMA 2026

4291 · NMA code 4291 - Construction d'ouvrages maritimes et fluviaux

Morocco NMA code 4291 in 2026 with definition, branch, VAT, CNSS, licences, legal form hints and business-setup guidance for Construction d'ouvrages maritimes et fluviaux.

TVA20%
CNSS ER21,09%
CNSS EE6,74%
Taxe ProC2 (20%)

Morocco NMA code 4291 in 2026 with definition, branch, VAT, CNSS, licences, legal form hints and business-setup guidance for Construction d'ouvrages maritimes et fluviaux.

Presentation of NMA code 4291

NMA code 4291 (Construction d’ouvrages maritimes et fluviaux) should be used when the core activity matches this exact label in branch 42 (Génie civil). Check immediate neighbour codes before filing.

In this branch

4211 - Construction de routes et autoroutes4212 - Construction de voies ferrées de surface et souterraines4213 - Construction de ponts et tunnels4221 - Construction de réseaux pour fluides4222 - Construction de réseaux électriques et de télécommunications4291 - Construction d'ouvrages maritimes et fluviaux4299 - Construction d'autres ouvrages de génie civil n.c.a.
Previous code4222Next code4299

NMA Classification and Hierarchy

Level Code Label
Section F Construction
Branch 42 Génie civil
Sub-branch 429 Génie civil
Activity 4291 Construction d’ouvrages maritimes et fluviaux

Practical use of the code in Morocco

Context Why the code matters
Company setup / RC / ICE Code 4291 helps describe the main activity in company-registration workflows.
Invoicing and tax The code does not set VAT on its own, but it guides the first reading of the product or service before checking the tax text.
Payroll and CNSS Once staff are hired, it helps connect the real activity with payroll, employer cost and compliance checkpoints.
Licence or approval Yes, if the real service is regulated in this branch.

Sectoral licenses and authorizations

This branch often falls into a regulated area: Civil engineering, sites and permits. Check the relevant Moroccan permit portals before launch.

Which profiles usually use NMA code 4291?

This NMA code typically applies to these professional profiles or business models:

Civil engineering contractorConstruction site officeSite works manager

Source: HCP - Nomenclature Marocaine des Activites · OFFICIAL_DOC · 2026-05-04

Official description of NMA code 4291

NMA code 4291 (Construction d’ouvrages maritimes et fluviaux) should be used when the core activity matches this exact label in branch 42 (Génie civil). Check immediate neighbour codes before filing.