diff --git a/discussion/neutra/neutra_kernel_test.py b/discussion/neutra/neutra_kernel_test.py
index effbf66534..debe92a71a 100644
--- a/discussion/neutra/neutra_kernel_test.py
+++ b/discussion/neutra/neutra_kernel_test.py
@@ -14,7 +14,6 @@
 # ============================================================================
 """Tests NeuTra."""
 
-# Dependency imports
 from absl.testing import parameterized
 
 import tensorflow.compat.v1 as tf
diff --git a/spinoffs/inference_gym/inference_gym/targets/vectorized_stochastic_volatility_test.py b/spinoffs/inference_gym/inference_gym/targets/vectorized_stochastic_volatility_test.py
index a53f802733..f12c66b379 100644
--- a/spinoffs/inference_gym/inference_gym/targets/vectorized_stochastic_volatility_test.py
+++ b/spinoffs/inference_gym/inference_gym/targets/vectorized_stochastic_volatility_test.py
@@ -14,8 +14,6 @@
 
 import functools
 
-# Dependency imports
-
 from absl import logging
 from absl.testing import parameterized
 import numpy as np
diff --git a/tensorflow_probability/examples/statistical_rethinking/rethinking/quap_test.py b/tensorflow_probability/examples/statistical_rethinking/rethinking/quap_test.py
index e2ee5935a1..da91f057e4 100644
--- a/tensorflow_probability/examples/statistical_rethinking/rethinking/quap_test.py
+++ b/tensorflow_probability/examples/statistical_rethinking/rethinking/quap_test.py
@@ -16,7 +16,6 @@
 
 import collections
 
-# Dependency imports
 from absl.testing import parameterized
 
 import tensorflow.compat.v2 as tf
diff --git a/tensorflow_probability/python/debugging/benchmarking/benchmark_tf_function.py b/tensorflow_probability/python/debugging/benchmarking/benchmark_tf_function.py
index fa00281b1a..fd052403e5 100644
--- a/tensorflow_probability/python/debugging/benchmarking/benchmark_tf_function.py
+++ b/tensorflow_probability/python/debugging/benchmarking/benchmark_tf_function.py
@@ -27,8 +27,6 @@
 import pprint
 import time
 
-# Dependency imports
-
 import tensorflow.compat.v2 as tf
 
 RUNTIME_EAGER = 'eager'
diff --git a/tensorflow_probability/python/experimental/distribute/sharded.py b/tensorflow_probability/python/experimental/distribute/sharded.py
index d58e47a1a7..494b9c5eff 100644
--- a/tensorflow_probability/python/experimental/distribute/sharded.py
+++ b/tensorflow_probability/python/experimental/distribute/sharded.py
@@ -14,8 +14,6 @@
 # ============================================================================
 """Distributions for distributed computations."""
 
-# Dependency imports
-
 import tensorflow.compat.v2 as tf
 
 from tensorflow_probability.python.distributions import distribution as distribution_lib
diff --git a/tensorflow_probability/python/experimental/marginalize/marginalizable_test.py b/tensorflow_probability/python/experimental/marginalize/marginalizable_test.py
index b0da46d476..e3ee64ef01 100644
--- a/tensorflow_probability/python/experimental/marginalize/marginalizable_test.py
+++ b/tensorflow_probability/python/experimental/marginalize/marginalizable_test.py
@@ -21,8 +21,6 @@
 import functools
 import itertools
 
-# Dependency imports
-
 import numpy as np
 import tensorflow.compat.v2 as tf
 from tensorflow_probability.python.distributions import bernoulli
diff --git a/tensorflow_probability/python/experimental/mcmc/internal/test_fixtures.py b/tensorflow_probability/python/experimental/mcmc/internal/test_fixtures.py
index af633f9561..41de535eb6 100644
--- a/tensorflow_probability/python/experimental/mcmc/internal/test_fixtures.py
+++ b/tensorflow_probability/python/experimental/mcmc/internal/test_fixtures.py
@@ -16,7 +16,6 @@
 
 import collections
 
-# Dependency imports
 import tensorflow.compat.v2 as tf
 from tensorflow_probability.python.experimental.mcmc import reducer
 from tensorflow_probability.python.mcmc import kernel
diff --git a/tensorflow_probability/python/experimental/nn/util/convolution_util_test.py b/tensorflow_probability/python/experimental/nn/util/convolution_util_test.py
index d86b31a3cd..d648b27496 100644
--- a/tensorflow_probability/python/experimental/nn/util/convolution_util_test.py
+++ b/tensorflow_probability/python/experimental/nn/util/convolution_util_test.py
@@ -14,8 +14,6 @@
 # ============================================================================
 """Tests for batched convolutions."""
 
-# Dependency imports
-
 from absl.testing import parameterized
 
 import numpy as np
diff --git a/tensorflow_probability/python/experimental/nn/util/kernel_bias_test.py b/tensorflow_probability/python/experimental/nn/util/kernel_bias_test.py
index d571a4cc86..82241f1955 100644
--- a/tensorflow_probability/python/experimental/nn/util/kernel_bias_test.py
+++ b/tensorflow_probability/python/experimental/nn/util/kernel_bias_test.py
@@ -14,8 +14,6 @@
 # ============================================================================
 """Tests for kernel_bias."""
 
-# Dependency imports
-
 from tensorflow_probability.python.experimental.nn.util import kernel_bias
 from tensorflow_probability.python.internal import test_util
 
diff --git a/tensorflow_probability/python/experimental/sequential/ensemble_adjustment_kalman_filter_test.py b/tensorflow_probability/python/experimental/sequential/ensemble_adjustment_kalman_filter_test.py
index ba21da8732..28f058095a 100644
--- a/tensorflow_probability/python/experimental/sequential/ensemble_adjustment_kalman_filter_test.py
+++ b/tensorflow_probability/python/experimental/sequential/ensemble_adjustment_kalman_filter_test.py
@@ -15,8 +15,6 @@
 """Tests for the Ensemble Adjustment Kalman Filter."""
 
 
-# Dependency imports
-
 import tensorflow.compat.v2 as tf
 
 from tensorflow_probability.python.distributions import joint_distribution_named as jdn
diff --git a/tensorflow_probability/python/experimental/sequential/ensemble_kalman_filter_test.py b/tensorflow_probability/python/experimental/sequential/ensemble_kalman_filter_test.py
index 1f2911217c..eee8ae0078 100644
--- a/tensorflow_probability/python/experimental/sequential/ensemble_kalman_filter_test.py
+++ b/tensorflow_probability/python/experimental/sequential/ensemble_kalman_filter_test.py
@@ -16,7 +16,6 @@
 
 import collections
 
-# Dependency imports
 from absl.testing import parameterized
 import numpy as np
 
diff --git a/tensorflow_probability/python/experimental/util/trainable.py b/tensorflow_probability/python/experimental/util/trainable.py
index 6dea8680db..5172f701ac 100644
--- a/tensorflow_probability/python/experimental/util/trainable.py
+++ b/tensorflow_probability/python/experimental/util/trainable.py
@@ -16,7 +16,6 @@
 
 import functools
 
-# Dependency imports
 import tensorflow.compat.v2 as tf
 
 from tensorflow_probability.python.internal import docstring_util
diff --git a/tensorflow_probability/python/internal/backend/jax/rewrite.py b/tensorflow_probability/python/internal/backend/jax/rewrite.py
index 68efbd20f5..a3b0703672 100644
--- a/tensorflow_probability/python/internal/backend/jax/rewrite.py
+++ b/tensorflow_probability/python/internal/backend/jax/rewrite.py
@@ -14,8 +14,6 @@
 # ============================================================================
 """Rewrite script for NP->JAX."""
 
-# Dependency imports
-
 from absl import app
 from absl import flags
 
diff --git a/tensorflow_probability/python/layers/internal/distribution_tensor_coercible_test.py b/tensorflow_probability/python/layers/internal/distribution_tensor_coercible_test.py
index 68932e5f95..8974b8b3af 100644
--- a/tensorflow_probability/python/layers/internal/distribution_tensor_coercible_test.py
+++ b/tensorflow_probability/python/layers/internal/distribution_tensor_coercible_test.py
@@ -15,8 +15,6 @@
 import gc
 import operator
 
-# Dependency imports
-
 from absl.testing import parameterized
 import numpy as np
 import tensorflow.compat.v1 as tf1
diff --git a/tensorflow_probability/python/math/ode/xla_test.py b/tensorflow_probability/python/math/ode/xla_test.py
index 44987bcf1e..f06cd894d2 100644
--- a/tensorflow_probability/python/math/ode/xla_test.py
+++ b/tensorflow_probability/python/math/ode/xla_test.py
@@ -14,7 +14,6 @@
 # ============================================================================
 """XLA tests for TensorFlow Probability ODE solvers."""
 
-# Dependency imports
 from absl import flags
 from absl.testing import parameterized
 import numpy as np
diff --git a/tensorflow_probability/python/math/psd_kernels/internal/util_test.py b/tensorflow_probability/python/math/psd_kernels/internal/util_test.py
index 7ce4de5dab..6a63c911c0 100644
--- a/tensorflow_probability/python/math/psd_kernels/internal/util_test.py
+++ b/tensorflow_probability/python/math/psd_kernels/internal/util_test.py
@@ -14,7 +14,6 @@
 # ============================================================================
 """Tests for Positive-Semidefinite Kernels utilities."""
 
-# Dependency imports
 from absl.testing import parameterized
 import numpy as np
 import tensorflow.compat.v1 as tf1
diff --git a/tensorflow_probability/python/monte_carlo/expectation_test.py b/tensorflow_probability/python/monte_carlo/expectation_test.py
index 3e6d2c6e0c..6504af1a9a 100644
--- a/tensorflow_probability/python/monte_carlo/expectation_test.py
+++ b/tensorflow_probability/python/monte_carlo/expectation_test.py
@@ -14,8 +14,6 @@
 # ============================================================================
 """Tests for Monte Carlo Ops."""
 
-# Dependency imports
-
 import tensorflow.compat.v2 as tf
 from tensorflow_probability.python.distributions import bernoulli
 from tensorflow_probability.python.distributions import joint_distribution_named as jdn
diff --git a/tensorflow_probability/python/random/random_ops_test.py b/tensorflow_probability/python/random/random_ops_test.py
index 4453dea2d6..9dbe8a6c6c 100644
--- a/tensorflow_probability/python/random/random_ops_test.py
+++ b/tensorflow_probability/python/random/random_ops_test.py
@@ -14,7 +14,6 @@
 # ============================================================================
 """Tests for generating random samples."""
 
-# Dependency imports
 import numpy as np
 
 import tensorflow.compat.v1 as tf1
diff --git a/tensorflow_probability/substrates/meta/rewrite.py b/tensorflow_probability/substrates/meta/rewrite.py
index f856bdaf1a..c2392254d3 100644
--- a/tensorflow_probability/substrates/meta/rewrite.py
+++ b/tensorflow_probability/substrates/meta/rewrite.py
@@ -16,7 +16,6 @@
 
 import collections
 
-# Dependency imports
 from absl import app
 from absl import flags