diff --git a/pyproject.toml b/pyproject.toml
index 85f01a6fda..2a677edd06 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -109,17 +109,19 @@ ignore = [
 max-line-length = 300
 
 [tool.ruff.lint.flake8-tidy-imports.banned-api]
-"xdsl.parser.core".msg = "Use xdsl.parser instead."
-"xdsl.parser.attribute_parser".msg = "Use xdsl.parser instead."
-"xdsl.parser.affine_parser".msg = "Use xdsl.parser instead."
+"xdsl.dialects.utils.fast_math".msg = "Use xdsl.dialects.utils instead"
+"xdsl.dialects.utils.format".msg = "Use xdsl.dialects.utils instead"
+"xdsl.ir.affine.affine_expr".msg = "Use xdsl.ir.affine instead"
+"xdsl.ir.affine.affine_map".msg = "Use xdsl.ir.affine instead"
+"xdsl.ir.affine.affine_set".msg = "Use xdsl.ir.affine instead"
 "xdsl.ir.core".msg = "Use xdsl.ir instead."
+"xdsl.irdl.attributes".msg = "Use xdsl.irdl instead"
 "xdsl.irdl.common".msg = "Use xdsl.irdl instead"
 "xdsl.irdl.constraints".msg = "Use xdsl.irdl instead"
-"xdsl.irdl.attributes".msg = "Use xdsl.irdl instead"
 "xdsl.irdl.operations".msg = "Use xdsl.irdl instead"
-"xdsl.ir.affine.affine_expr".msg = "Use xdsl.ir.affine instead"
-"xdsl.ir.affine.affine_map".msg = "Use xdsl.ir.affine instead"
-"xdsl.ir.affine.affine_set".msg = "Use xdsl.ir.affine instead"
+"xdsl.parser.affine_parser".msg = "Use xdsl.parser instead."
+"xdsl.parser.attribute_parser".msg = "Use xdsl.parser instead."
+"xdsl.parser.core".msg = "Use xdsl.parser instead."
 
 
 [tool.ruff.lint.per-file-ignores]
diff --git a/xdsl/dialects/utils/__init__.py b/xdsl/dialects/utils/__init__.py
new file mode 100644
index 0000000000..97cc7a2b6f
--- /dev/null
+++ b/xdsl/dialects/utils/__init__.py
@@ -0,0 +1,4 @@
+# TID 251 enforces to not import from those
+# We need to skip it here to allow importing from here instead.
+from .fast_math import *  # noqa: TID251
+from .format import *  # noqa: TID251
diff --git a/xdsl/dialects/utils/fast_math.py b/xdsl/dialects/utils/fast_math.py
new file mode 100644
index 0000000000..c12b8b5878
--- /dev/null
+++ b/xdsl/dialects/utils/fast_math.py
@@ -0,0 +1,29 @@
+from abc import ABC
+from dataclasses import dataclass
+
+from xdsl.ir import BitEnumAttribute
+from xdsl.utils.str_enum import StrEnum
+
+
+class FastMathFlag(StrEnum):
+    """
+    Values specifying fast math behaviour of an arithmetic operation.
+    """
+
+    REASSOC = "reassoc"
+    NO_NANS = "nnan"
+    NO_INFS = "ninf"
+    NO_SIGNED_ZEROS = "nsz"
+    ALLOW_RECIP = "arcp"
+    ALLOW_CONTRACT = "contract"
+    APPROX_FUNC = "afn"
+
+
+@dataclass(frozen=True, init=False)
+class FastMathAttrBase(BitEnumAttribute[FastMathFlag], ABC):
+    """
+    Base class for attributes defining fast math behavior of arithmetic operations.
+    """
+
+    none_value = "none"
+    all_value = "fast"
diff --git a/xdsl/dialects/utils.py b/xdsl/dialects/utils/format.py
similarity index 93%
rename from xdsl/dialects/utils.py
rename to xdsl/dialects/utils/format.py
index 5b5fb8b0f9..ae7965d213 100644
--- a/xdsl/dialects/utils.py
+++ b/xdsl/dialects/utils/format.py
@@ -1,6 +1,4 @@
-from abc import ABC
 from collections.abc import Iterable, Sequence
-from dataclasses import dataclass
 from typing import Generic
 
 from xdsl.dialects.builtin import (
@@ -14,7 +12,6 @@
 from xdsl.ir import (
     Attribute,
     AttributeInvT,
-    BitEnumAttribute,
     BlockArgument,
     Operation,
     Region,
@@ -23,7 +20,6 @@
 from xdsl.irdl import IRDLOperation, var_operand_def
 from xdsl.parser import Parser, UnresolvedOperand
 from xdsl.printer import Printer
-from xdsl.utils.str_enum import StrEnum
 
 
 def print_call_op_like(
@@ -345,33 +341,3 @@ def parse_dynamic_index_list_without_types(
             values.append(value_or_index)
 
     return values, indices
-
-
-# region Fast Math Flags
-
-
-class FastMathFlag(StrEnum):
-    """
-    Values specifying fast math behaviour of an arithmetic operation.
-    """
-
-    REASSOC = "reassoc"
-    NO_NANS = "nnan"
-    NO_INFS = "ninf"
-    NO_SIGNED_ZEROS = "nsz"
-    ALLOW_RECIP = "arcp"
-    ALLOW_CONTRACT = "contract"
-    APPROX_FUNC = "afn"
-
-
-@dataclass(frozen=True, init=False)
-class FastMathAttrBase(BitEnumAttribute[FastMathFlag], ABC):
-    """
-    Base class for attributes defining fast math behavior of arithmetic operations.
-    """
-
-    none_value = "none"
-    all_value = "fast"
-
-
-# endregion