diff --git a/addons/cetmix_tower_server/models/cx_tower_jet_state.py b/addons/cetmix_tower_server/models/cx_tower_jet_state.py
new file mode 100644
index 0000000..5a53608
--- /dev/null
+++ b/addons/cetmix_tower_server/models/cx_tower_jet_state.py
@@ -0,0 +1,91 @@
+# Copyright (C) 2024 Cetmix OÜ
+# License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl).
+
+from odoo import _, fields, models
+from odoo.exceptions import AccessError, ValidationError
+
+
+class CxTowerJetState(models.Model):
+    """Jet States represent the different states a jet can be in during its lifecycle"""
+
+    _name = "cx.tower.jet.state"
+    _description = "Cetmix Tower Jet State"
+    _inherit = ["cx.tower.reference.mixin", "cx.tower.access.mixin"]
+    _order = "sequence, id"
+
+    sequence = fields.Integer(default=10, required=True)
+    active = fields.Boolean(default=True)
+    color = fields.Integer()
+    note = fields.Text()
+
+    # Set default access level to User
+    access_level = fields.Selection(default="1")
+
+    def unlink(self):
+        """
+        Do not allow to unlink a state
+        if it is used in any action
+        """
+        actions = self.env["cx.tower.jet.action"].search(
+            [
+                "|",
+                "|",
+                ("state_from_id", "in", self.ids),
+                ("state_to_id", "in", self.ids),
+                ("state_transit_id", "in", self.ids),
+            ]
+        )
+        if actions:
+            raise ValidationError(
+                _(
+                    "Some states are still used in the following actions: %(actions)s"
+                    "\nJet templates: %(templates)s",
+                    actions=", ".join(set(actions.mapped("name"))),
+                    templates=", ".join(set(actions.mapped("jet_template_id.name"))),
+                )
+            )
+        return super().unlink()
+
+    def set_state(self, jet=None):
+        """Sets the state of the jet
+
+        Args:
+            jet (cx.tower.jet): Jet to set the state.
+        """
+        self.ensure_one()
+
+        # Try to obtain jet from context if not provided as an argument
+        if jet is None:
+            jet_id = self.env.context.get("jet_id")
+
+            # Just return, no exceptions for now
+            if not jet_id:
+                return
+
+            jet = self.env["cx.tower.jet"].browse(jet_id)
+
+        # Ensure that the state is set for a single jet
+        if not jet or len(jet) > 1:
+            raise ValidationError(_("State can be set only for a single jet"))
+
+        # Check access to the jet
+        jet.check_access_rights("read")
+        jet.check_access_rule("write")
+
+        # Get user access level
+        user_access_level = self.env.user._cetmix_tower_access_level()
+
+        # If user is manager but is not added as a manager to the jet,
+        # his access level is considered as user.
+        # NB: record access is already checked above.
+        if user_access_level == "2" and self.env.user not in jet.manager_ids:
+            user_access_level = "1"
+
+        # Check if user access level is equal or greater
+        if self.access_level > user_access_level:
+            raise AccessError(
+                _("You are not allowed to set the '%(state)s' state!", state=self.name)
+            )
+
+        # Bring the jet to the state
+        jet._bring_to_state(self)