diff --git a/pyciemss/compiled_dynamics.py b/pyciemss/compiled_dynamics.py
index ddcebd45b..8e7f53e3d 100644
--- a/pyciemss/compiled_dynamics.py
+++ b/pyciemss/compiled_dynamics.py
@@ -1,7 +1,7 @@
 from __future__ import annotations
 
 import functools
-from typing import Callable, Dict, List, Optional, Tuple, TypeVar, Union
+from typing import Callable, Dict, Optional, Tuple, TypeVar, Union
 
 import mira
 import mira.metamodel
@@ -39,13 +39,6 @@ def __init__(self, src, **kwargs):
 
         self.instantiate_parameters()
 
-    def params_with_distributions(self) -> List:
-        return [
-            get_name(k)
-            for k, v in _compile_param_values(self.src).items()
-            if isinstance(v, pyro.nn.PyroSample)
-        ]
-
     @pyro.nn.pyro_method
     def deriv(self, X: State[torch.Tensor]) -> None:
         return eval_deriv(self.src, self, X)
diff --git a/pyciemss/interfaces.py b/pyciemss/interfaces.py
index 9adf72bfc..2d6a9e579 100644
--- a/pyciemss/interfaces.py
+++ b/pyciemss/interfaces.py
@@ -648,12 +648,6 @@ def calibrate(
 
     model = CompiledDynamics.load(model_path_or_json)
 
-    if len(model.params_with_distributions()) == 0:
-        raise ValueError(
-            "The model does not contain distributions representing uncertainty over any parameters."
-            "As there is no uncertainty, `calibrate` will not update any parameters."
-        )
-
     data_timepoints, data = load_data(data_path, data_mapping=data_mapping)
 
     # Check that num_iterations is a positive integer
diff --git a/tests/fixtures.py b/tests/fixtures.py
index ac107dcdc..50ab66f0d 100644
--- a/tests/fixtures.py
+++ b/tests/fixtures.py
@@ -85,16 +85,6 @@ def __init__(
     ModelFixture(os.path.join(MODELS_PATH, "SEIRHD_stockflow.json"), "p_cbeta"),
 ]
 
-MODELS_WITHOUT_DISTRIBUTIONS = [
-    ModelFixture(
-        os.path.join(MODELS_PATH, "SEIR_stockflow_no_uncertainty"),
-        "p_cbeta",
-        os.path.join(DATA_PATH, "traditional.csv"),
-        {"Infected": "I"},
-        False,
-    ),
-]
-
 optimize_kwargs_SIRstockflow_param = {
     "qoi": lambda x: obs_nday_average_qoi(x, ["I_state"], 1),
     "risk_bound": 300.0,
diff --git a/tests/test_compiled_dynamics.py b/tests/test_compiled_dynamics.py
index d859e05df..a465d9d96 100644
--- a/tests/test_compiled_dynamics.py
+++ b/tests/test_compiled_dynamics.py
@@ -8,13 +8,7 @@
 
 from pyciemss.compiled_dynamics import CompiledDynamics
 
-from .fixtures import (
-    END_TIMES,
-    MODEL_URLS,
-    MODELS_WITHOUT_DISTRIBUTIONS,
-    START_TIMES,
-    check_is_state,
-)
+from .fixtures import END_TIMES, MODEL_URLS, START_TIMES, check_is_state
 
 
 @pytest.mark.parametrize("url", MODEL_URLS)
@@ -61,17 +55,3 @@ def test_compiled_dynamics_load_json(url, start_time, end_time):
     with TorchDiffEq():
         simulation = model(torch.as_tensor(start_time), torch.as_tensor(end_time))
     check_is_state(simulation, torch.Tensor)
-
-
-@pytest.mark.parametrize("url", MODEL_URLS)
-def test_params_with_distributions(url):
-    model = CompiledDynamics.load(url)
-    assert isinstance(model, CompiledDynamics)
-    assert len(model.params_with_distributions()) > 0
-
-
-@pytest.mark.parametrize("models", MODELS_WITHOUT_DISTRIBUTIONS)
-def test_params_without_distributions(models):
-    model = CompiledDynamics.load(models.url)
-    assert isinstance(model, CompiledDynamics)
-    assert len(model.params_with_distributions()) == 0
diff --git a/tests/test_interfaces.py b/tests/test_interfaces.py
index 0a39b7a6b..8bd270021 100644
--- a/tests/test_interfaces.py
+++ b/tests/test_interfaces.py
@@ -21,7 +21,6 @@
     MAPPING_FOR_DATA_TESTS,
     MODEL_URLS,
     MODELS,
-    MODELS_WITHOUT_DISTRIBUTIONS,
     NON_POS_INTS,
     NUM_SAMPLES,
     OPT_MODELS,
@@ -698,13 +697,3 @@ def test_bad_euler_solver_optimize(model_fixture):
             logging_step_size,
             **optimize_kwargs,
         )
-
-
-@pytest.mark.parametrize("model_fixture", MODELS_WITHOUT_DISTRIBUTIONS)
-def test_calibrate_no_distributions(model_fixture):
-    with pytest.raises(ValueError):
-        calibrate(
-            model_fixture.url,
-            model_fixture.data_path,
-            data_mapping=model_fixture.data_mapping,
-        )