diff --git a/libcxx/include/__format/formatter_bool.h b/libcxx/include/__format/formatter_bool.h
--- a/libcxx/include/__format/formatter_bool.h
+++ b/libcxx/include/__format/formatter_bool.h
@@ -54,10 +54,6 @@
       this->__handle_bool();
       break;
 
-    case _Flags::_Type::__char:
-      this->__handle_char();
-      break;
-
     case _Flags::_Type::__binary_lower_case:
     case _Flags::_Type::__binary_upper_case:
     case _Flags::_Type::__octal:
diff --git a/libcxx/test/libcxx/utilities/format/format.string/format.string.std/std_format_spec_bool.pass.cpp b/libcxx/test/libcxx/utilities/format/format.string/format.string.std/std_format_spec_bool.pass.cpp
--- a/libcxx/test/libcxx/utilities/format/format.string/format.string.std/std_format_spec_bool.pass.cpp
+++ b/libcxx/test/libcxx/utilities/format/format.string/format.string.std/std_format_spec_bool.pass.cpp
@@ -196,76 +196,6 @@
   test({.locale_specific_form = true}, 2, CSTR("Ls}"));
 }
 
-template <class CharT>
-constexpr void test_as_char() {
-
-  test({.type = _Flags::_Type::__char}, 1, CSTR("c}"));
-
-  // *** Align-fill ***
-  test({.alignment = _Flags::_Alignment::__left, .type = _Flags::_Type::__char},
-       2, CSTR("<c}"));
-  test({.alignment = _Flags::_Alignment::__center,
-        .type = _Flags::_Type::__char},
-       2, "^c}");
-  test(
-      {.alignment = _Flags::_Alignment::__right, .type = _Flags::_Type::__char},
-      2, ">c}");
-
-  test({.fill = CharT('L'),
-        .alignment = _Flags::_Alignment::__left,
-        .type = _Flags::_Type::__char},
-       3, CSTR("L<c}"));
-  test({.fill = CharT('#'),
-        .alignment = _Flags::_Alignment::__center,
-        .type = _Flags::_Type::__char},
-       3, CSTR("#^c}"));
-  test({.fill = CharT('0'),
-        .alignment = _Flags::_Alignment::__right,
-        .type = _Flags::_Type::__char},
-       3, CSTR("0>c}"));
-
-  // *** Sign ***
-  test_exception<Parser<CharT>>(
-      "A sign field isn't allowed in this format-spec", CSTR("-c}"));
-
-  // *** Alternate form ***
-  test_exception<Parser<CharT>>(
-      "An alternate form field isn't allowed in this format-spec", CSTR("#c}"));
-
-  // *** Zero padding ***
-  test_exception<Parser<CharT>>(
-      "A zero-padding field isn't allowed in this format-spec", CSTR("0c}"));
-
-  // *** Width ***
-  test({.width = 0, .width_as_arg = false, .type = _Flags::_Type::__char}, 1,
-       CSTR("c}"));
-  test({.width = 1, .width_as_arg = false, .type = _Flags::_Type::__char}, 2,
-       CSTR("1c}"));
-  test({.width = 10, .width_as_arg = false, .type = _Flags::_Type::__char}, 3,
-       CSTR("10c}"));
-  test({.width = 1000, .width_as_arg = false, .type = _Flags::_Type::__char}, 5,
-       CSTR("1000c}"));
-  test({.width = 1000000, .width_as_arg = false, .type = _Flags::_Type::__char},
-       8, CSTR("1000000c}"));
-
-  test({.width = 0, .width_as_arg = true, .type = _Flags::_Type::__char}, 3,
-       CSTR("{}c}"));
-  test({.width = 0, .width_as_arg = true, .type = _Flags::_Type::__char}, 4,
-       CSTR("{0}c}"));
-  test({.width = 1, .width_as_arg = true, .type = _Flags::_Type::__char}, 4,
-       CSTR("{1}c}"));
-
-  // *** Precision ***
-  test_exception<Parser<CharT>>(
-      "The format-spec should consume the input or end with a '}'", CSTR("."));
-  test_exception<Parser<CharT>>(
-      "The format-spec should consume the input or end with a '}'", CSTR(".1"));
-
-  // *** Locale-specific form ***
-  test({.locale_specific_form = true, .type = _Flags::_Type::__char}, 2,
-       CSTR("Lc}"));
-}
-
 template <class CharT>
 constexpr void test_as_integer() {
 
@@ -401,7 +331,6 @@
   test({}, 0, CSTR("}"));
 
   test_as_string<CharT>();
-  test_as_char<CharT>();
   test_as_integer<CharT>();
 
   // *** Type ***
@@ -413,6 +342,7 @@
     test_exception<Parser<CharT>>(expected, CSTR("F}"));
     test_exception<Parser<CharT>>(expected, CSTR("G}"));
     test_exception<Parser<CharT>>(expected, CSTR("a}"));
+    test_exception<Parser<CharT>>(expected, CSTR("c}"));
     test_exception<Parser<CharT>>(expected, CSTR("e}"));
     test_exception<Parser<CharT>>(expected, CSTR("f}"));
     test_exception<Parser<CharT>>(expected, CSTR("g}"));
diff --git a/libcxx/test/std/utilities/format/format.functions/format_tests.h b/libcxx/test/std/utilities/format/format.functions/format_tests.h
--- a/libcxx/test/std/utilities/format/format.functions/format_tests.h
+++ b/libcxx/test/std/utilities/format/format.functions/format_tests.h
@@ -393,54 +393,7 @@
   // See locale-specific_form.pass.cpp
 
   // *** type ***
-  for (const auto& fmt : invalid_types<CharT>("bBcdosxX"))
-    check_exception("The format-spec type has a type not supported for a bool argument", fmt, true);
-}
-
-template <class CharT, class TestFunction, class ExceptionTest>
-void format_test_bool_as_char(TestFunction check, ExceptionTest check_exception) {
-  // *** align-fill & width ***
-  check(SV("answer is '\1     '"), SV("answer is '{:6c}'"), true);
-  check(SV("answer is '     \1'"), SV("answer is '{:>6c}'"), true);
-  check(SV("answer is '\1     '"), SV("answer is '{:<6c}'"), true);
-  check(SV("answer is '  \1   '"), SV("answer is '{:^6c}'"), true);
-
-  check(SV("answer is '-----\1'"), SV("answer is '{:->6c}'"), true);
-  check(SV("answer is '\1-----'"), SV("answer is '{:-<6c}'"), true);
-  check(SV("answer is '--\1---'"), SV("answer is '{:-^6c}'"), true);
-
-  check(std::basic_string_view<CharT>(CSTR("answer is '\0     '"), 18), SV("answer is '{:6c}'"), false);
-  check(std::basic_string_view<CharT>(CSTR("answer is '\0     '"), 18), SV("answer is '{:6c}'"), false);
-  check(std::basic_string_view<CharT>(CSTR("answer is '     \0'"), 18), SV("answer is '{:>6c}'"), false);
-  check(std::basic_string_view<CharT>(CSTR("answer is '\0     '"), 18), SV("answer is '{:<6c}'"), false);
-  check(std::basic_string_view<CharT>(CSTR("answer is '  \0   '"), 18), SV("answer is '{:^6c}'"), false);
-
-  check(std::basic_string_view<CharT>(CSTR("answer is '-----\0'"), 18), SV("answer is '{:->6c}'"), false);
-  check(std::basic_string_view<CharT>(CSTR("answer is '\0-----'"), 18), SV("answer is '{:-<6c}'"), false);
-  check(std::basic_string_view<CharT>(CSTR("answer is '--\0---'"), 18), SV("answer is '{:-^6c}'"), false);
-
-  // *** Sign ***
-  check_exception("A sign field isn't allowed in this format-spec", SV("{:-c}"), true);
-  check_exception("A sign field isn't allowed in this format-spec", SV("{:+c}"), true);
-  check_exception("A sign field isn't allowed in this format-spec", SV("{: c}"), true);
-
-  // *** alternate form ***
-  check_exception("An alternate form field isn't allowed in this format-spec", SV("{:#c}"), true);
-
-  // *** zero-padding ***
-  check_exception("A zero-padding field isn't allowed in this format-spec", SV("{:0c}"), true);
-
-  // *** precision ***
-  check_exception("The format-spec should consume the input or end with a '}'", SV("{:.c}"), true);
-  check_exception("The format-spec should consume the input or end with a '}'", SV("{:.0c}"), true);
-  check_exception("The format-spec should consume the input or end with a '}'", SV("{:.42c}"), true);
-
-  // *** locale-specific form ***
-  // Note it has no effect but it's allowed.
-  check(SV("answer is '*'"), SV("answer is '{:Lc}'"), '*');
-
-  // *** type ***
-  for (const auto& fmt : invalid_types<CharT>("bBcdosxX"))
+  for (const auto& fmt : invalid_types<CharT>("bBdosxX"))
     check_exception("The format-spec type has a type not supported for a bool argument", fmt, true);
 }
 
@@ -2550,7 +2503,6 @@
   check(SV("hello false true"), SV("hello {} {}"), false, true);
 
   format_test_bool<CharT>(check, check_exception);
-  format_test_bool_as_char<CharT>(check, check_exception);
   format_test_bool_as_integer<CharT>(check, check_exception);
 
   // *** Test signed integral format argument ***