diff --git a/qiskit_experiments/library/characterization/t1.py b/qiskit_experiments/library/characterization/t1.py
index 95a3f525f4..643b213ca6 100644
--- a/qiskit_experiments/library/characterization/t1.py
+++ b/qiskit_experiments/library/characterization/t1.py
@@ -85,9 +85,6 @@ def __init__(
         Raises:
             ValueError: if the number of delays is smaller than 3
         """
-        if len(delays) < 3:
-            raise ValueError("T1 experiment: number of delays must be at least 3")
-
         # Initialize base experiment
         super().__init__([qubit], backend=backend)