diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
index 8a8ab1f4..fdd5a3bb 100644
--- a/.pre-commit-config.yaml
+++ b/.pre-commit-config.yaml
@@ -86,7 +86,6 @@ repos:
     rev: 5.0.4
     hooks:
       - id: flake8
-        args: ["--config", "tox.ini"]
         additional_dependencies:
           - flake8-docstrings
           - flake8-colors
@@ -97,6 +96,7 @@ repos:
           - pycodestyle
           - pyflakes
           - flake8-rst-docstrings
+          - flake8-pyproject
           - flake8-use-fstring
 
   # Check for known security vulnerabilities:
@@ -107,18 +107,6 @@ repos:
         args: ["-c", "pyproject.toml"]
         additional_dependencies: ["bandit[toml]"]
 
-  #  # Use type annotations to check types
-  #  - repo: https://github.com/pre-commit/mirrors-mypy
-  #    rev: v0.990
-  #    hooks:
-  #      - id: mypy
-  #        additional_dependencies:
-  #          - pytest
-  #          - types-jinja2
-  #          - types-setuptools
-  ##          - pandas-stubs
-  #        args: ["--strict"]
-
   # Check for errors in restructuredtext (.rst) files under the doc hierarchy
   - repo: https://github.com/PyCQA/doc8
     rev: v1.0.0
diff --git a/docs/release_notes.rst b/docs/release_notes.rst
index 276855ea..1cc8c2fa 100644
--- a/docs/release_notes.rst
+++ b/docs/release_notes.rst
@@ -73,6 +73,8 @@ What's New?
     facility has storage, storage can be charged by the constrained excess.
 *   Added ``compare_hist`` argument to :meth:`.DispatchModel.plot_period` which creates
     panel plot showing both historical dispatch and redispatch for the period.
+*   Cleanup of configuration and packaging files. Contents of ``setup.cfg`` and
+    ``tox.ini`` moved to ``pyproject.toml``.
 
 Bug Fixes
 ^^^^^^^^^
diff --git a/pyproject.toml b/pyproject.toml
index b90bf063..19f8cd1d 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -2,35 +2,146 @@
 requires = ["setuptools<66", "setuptools_scm[toml]>=3.5.0"]
 build-backend = "setuptools.build_meta"
 
+[project]
+name = "rmi.dispatch"
+description = "A simple and efficient dispatch model."
+license = {file = "LICENSE.txt"}
+readme = "README.rst"
+dynamic = ["version"]
+classifiers = [
+    "Natural Language :: English",
+    "Operating System :: OS Independent",
+    "Programming Language :: Python",
+    "Programming Language :: Python :: 3",
+    "Programming Language :: Python :: 3 :: Only",
+    "Programming Language :: Python :: 3.10",
+]
+requires-python = ">=3.10,<3.11"
+dependencies = [
+    "bottleneck >= 1.3,<1.3.6",
+    "numba >= 0.55.1,<0.57",
+    "numexpr >= 2.8, <2.8.4",
+    "numpy >= 1.18.5,<2",
+    "pandas >= 1.4,< 1.6",
+    "pandera ~= 0.12",
+    "pyarrow>=7, <11",
+    "rmi.etoolbox @ git+https://github.com/rmi-electricity/etoolbox.git",
+]
+
+[project.optional-dependencies]
+dev = [
+    "black[jupyter] >= 22,<23",
+    "isort>=5.0,<5.11",
+    "tox>=3.20,<3.28",
+]
+doc = [
+    "doc8>=0.9,<1.1",
+    "furo>=2022.4.7",
+    "sphinx>=4,!=5.1.0,<5.3.1",
+    "sphinx-autoapi>=1.8,<2.1",
+    "sphinx-issues>=1.2,<3.1",
+    "sphinx-autodoc-typehints>1.19,<=1.19.5",
+    "sphinxcontrib-mermaid>0.7,<=0.7.1",
+]
+tests = [
+    "bandit>=1.6,<1.8",
+    "coverage>=5.3,<6.6",
+    "doc8>=0.9,<1.1",
+    "flake8>=4.0,<5.1",
+    "flake8-builtins>=1.5,<2.1",
+    "flake8-docstrings>=1.5,<1.7",
+    "flake8-pyproject>1.0,<=1.2",
+    "flake8-rst-docstrings>=0.2,<0.3",
+    "flake8-use-fstring>=1.0,<1.5",
+    "mccabe>=0.6,<0.8",
+    "mypy>=0.942,<0.991",
+    "pep8-naming>=0.12,<0.14",
+    "pre-commit>=2.9,<2.21",
+    "pydocstyle>=5.1,<6.2",
+    "pytest>=6.2,<7.3",
+    "pytest-console-scripts>=1.1,<1.4",
+    "pytest-cov>=2.10,<4.1",
+    "rstcheck[sphinx,toml]>=5.0,<6.2",
+    "tox>=3.20,<3.28",
+]
+viz = [
+    "plotly>5.10,<=5.11",
+    "kaleido>0.2,<=0.2.1",
+]
+
 [tool.setuptools_scm]
 write_to = "src/dispatch/_version.py"
 
-[tool.black]
-line-length = 88
-target-version = ["py39", "py310", "py311"]
-include = "\\.pyi?$"
+[tool.setuptools]
+package-dir = {"" = "src"}
 
-[tool.isort]
-profile = "black"
-known_first_party = ["dispatch"]
+[tool.setuptools.packages.find]
+where = ["src"]
+
+[tool.setuptools.dynamic]
+version = {attr = "dispatch._version.__version__"}
 
 [tool.bandit]
 exclude_dirs = ["tests"]
 skips = ["B101"]
 
-[tool.mypy]
-python_version = "3.10"
-warn_return_any = true
-warn_unused_configs = true
-plugins = "numpy.typing.mypy_plugin"
+[tool.black]
+line-length = 88
+target-version = ["py39", "py310", "py311"]
+include = "\\.pyi?$"
 
-[[tool.mypy.overrides]]
-module = [
-    "numpy.*",
-    "pandas.*",
-    "numba.*"
+[tool.doc8]
+max-line-length = 88
+ignore-path = "docs/_build"
+
+[tool.flake8]
+extend-ignore = [
+    # * W503, W504: Line break before / after binary operator.
+    "W503", "W504",
+    "D401", # * D401: Imperative mood.
+    "E501", # * E501: Overlong line
+    "E203", # * E203: Space before ':' (black recommends to ignore)
+    # * RST201,RST203,RST301: Google docstrings aren't RST until after being processed by
+    #   Napoleon. See https://github.com/peterjc/flake8-rst-docstrings/issues/17
+    "RST201",  "RST203",  "RST301",
+    "D105",
+    "C901" # We have a backlog of complex functions being skipped with noqa: C901
+]
+max-complexity = 10
+inline-quotes = "double"
+max-line-length = 88
+docstring-convention = "google"
+# Files and directories that should not be subject to linting
+extend-exclude = [
+    ".env_tox",
+    ".eggs",
+    "build",
+]
+rst-roles =[
+    "attr",
+    "class",
+    "doc",
+    "func",
+    "meth",
+    "mod",
+    "obj",
+    "py:const",
+    "ref",
+    "user",
+]
+rst-directives =[
+    "envvar",
+    "exception",
 ]
-ignore_missing_imports = true
+percent-greedy = 2
+format-greedy = 2
+per-file-ignores = [
+    "__init__.py:F401"
+]
+
+[tool.isort]
+profile = "black"
+known_first_party = ["dispatch"]
 
 [tool.pytest.ini_options]
 testpaths = ["."]
@@ -45,12 +156,69 @@ filterwarnings = [
     "ignore:Creating a LegacyVersion:DeprecationWarning:pkg_resources[.*]",
 ]
 
-[tool.doc8]
-max-line-length = 88
-ignore-path = "docs/_build"
-
 [tool.rstcheck]
 report_level = "WARNING"
 ignore_roles = ["pr", "issue", "user", "include"]
 ignore_messages = '(Hyperlink target .* is not referenced\.$|Duplicate implicit target name:|An `AttributeError` error occured.*)'
 ignore_directives = ["bibliography", "todo", "include"]
+
+[tool.tox]
+legacy_tox_ini = """
+[tox]
+envlist =
+    linters
+    docs
+    tests
+isolated_build = True
+
+[testenv]
+extras =
+    tests
+    doc
+    viz
+allowlist_externals =
+    bash
+    coverage
+    sphinx-build
+skip_install = false
+covargs = --cov={envsitepackagesdir}/dispatch --cov-append --cov-report=lcov:coverage.info
+covreport = coverage report --sort=cover
+
+[testenv:linters]
+description = Run the pre-commit, flake8, rstcheck, doc8 and bandit linters.
+commands =
+    pre-commit run --all-files --show-diff-on-failure python-no-eval
+    pre-commit run --all-files --show-diff-on-failure python-no-log-warn
+    pre-commit run --all-files --show-diff-on-failure python-check-blanket-noqa
+    pre-commit run --all-files --show-diff-on-failure check-merge-conflict
+    pre-commit run --all-files --show-diff-on-failure check-yaml
+    pre-commit run --all-files --show-diff-on-failure check-case-conflict
+    pre-commit run --all-files --show-diff-on-failure debug-statements
+    pre-commit run --all-files --show-diff-on-failure name-tests-test
+    bandit -c pyproject.toml -r src/dispatch/
+    flake8
+    bash -c 'rm -rf docs/_build'
+    doc8 docs/ README.rst
+    rstcheck --config pyproject.toml --recursive ./
+
+[testenv:docs]
+description = Build the HTML docs from scratch using Sphinx.
+commands =
+    bash -c 'rm -rf docs/_build'
+    sphinx-build -b html docs docs/_build
+
+[testenv:tests]
+description = Run all tests & generate test coverage.
+recreate = true
+commands =
+    coverage erase
+    pytest {posargs} {[testenv]covargs} --doctest-modules {envsitepackagesdir}/dispatch tests
+    {[testenv]covreport}
+
+[testenv:build]
+description = Prepare Python source and binary packages for release.
+basepython = python3
+commands =
+    bash -c 'rm -rf build/* dist/*'
+    python -m build --sdist --wheel
+"""
diff --git a/setup.cfg b/setup.cfg
deleted file mode 100644
index 79bc7ec8..00000000
--- a/setup.cfg
+++ /dev/null
@@ -1,85 +0,0 @@
-[metadata]
-name = rmi.dispatch
-description = A simple and efficient dispatch model.
-;long_description = file: README.rst, CHANGELOG.rst, LICENSE.rst
-keywords = one, two
-license = BSD 3-Clause License
-classifiers =
-    Natural Language :: English
-    Operating System :: OS Independent
-    Programming Language :: Python
-    Programming Language :: Python :: 3
-    Programming Language :: Python :: 3 :: Only
-    Programming Language :: Python :: 3.10
-
-[options]
-package_dir=
-    =src
-packages=find:
-python_requires = >=3.10,<3.11
-install_requires =
-    bottleneck >= 1.3,<1.3.6
-    numba >= 0.55.1,<0.57
-    numexpr >= 2.8, <2.8.4
-    numpy >= 1.18.5,<2
-    pandas >= 1.4,< 1.6
-    pandera ~= 0.12
-    pyarrow>=7, <11
-    rmi.etoolbox @ git+https://github.com/rmi-electricity/etoolbox.git
-
-[options.packages.find]
-where=src
-
-[options.extras_require]
-dev =
-    black[jupyter] >= 22,<23
-    isort>=5.0,<5.11
-    tox>=3.20,<3.28
-doc =
-    doc8>=0.9,<1.1
-    furo>=2022.4.7
-    sphinx>=4,!=5.1.0,<5.3.1
-    sphinx-autoapi>=1.8,<2.1
-    sphinx-issues>=1.2,<3.1
-    sphinx-autodoc-typehints>1.19,<=1.19.5
-    sphinxcontrib-mermaid>0.7,<=0.7.1
-tests =
-    ; Checks code for security issues
-    bandit>=1.6,<1.8
-    ; Lets us track what code is being tested
-    coverage>=5.3,<6.6
-    ; Ensures clean documentation formatting
-    doc8>=0.9,<1.1
-    ; A framework for linting & static analysis
-    flake8>=4.0,<5.1
-    ; Avoid shadowing Python built-in names
-    flake8-builtins>=1.5,<2.1
-    ; Ensure docstrings are formatted well
-    flake8-docstrings>=1.5,<1.7
-    ; Allow use of ReST in docstrings
-    flake8-rst-docstrings>=0.2,<0.3
-    ; Highlight use of old-style string formatting
-    flake8-use-fstring>=1.0,<1.5
-    ; Checks that code isn't overly complicated
-    mccabe>=0.6,<0.8
-    ; Static type checking
-    mypy>=0.942,<0.991
-    ; Require PEP8 compliant variable names
-    pep8-naming>=0.12,<0.14
-    ; Allow us to run pre-commit hooks in testing
-    pre-commit>=2.9,<2.21
-    ; Style guidelines for Python documentation
-    pydocstyle>=5.1,<6.2
-    pytest>=6.2,<7.3
-    ; Allow automatic testing of scripts
-    pytest-console-scripts>=1.1,<1.4
-    ; Pytest plugin for working with coverage
-    pytest-cov>=2.10,<4.1
-    ; ReStructuredText linter
-    rstcheck[sphinx,toml]>=5.0,<6.2
-    ; Python test environment manager
-    tox>=3.20,<3.28
-;    pandas-stubs
-viz =
-    plotly>5.10,<=5.11
-    kaleido>0.2,<=0.2.1
diff --git a/tox.ini b/tox.ini
deleted file mode 100644
index 0ba611c3..00000000
--- a/tox.ini
+++ /dev/null
@@ -1,219 +0,0 @@
-[tox]
-envlist = ci
-isolated_build = True
-
-[testenv]
-allowlist_externals =
-    bash
-    coverage
-    sphinx-build
-    twine
-# shared directory for re-used packages
-envdir = {toxinidir}/.env_tox
-passenv =
-    CI
-    CONDA_PREFIX
-    GITHUB_*
-    GOOGLE_APPLICATION_CREDENTIALS
-    HOME
-    SQLALCHEMY_WARN_20
-covargs = --cov={envsitepackagesdir}/dispatch --cov-append --cov-report=lcov:coverage.info
-covreport = coverage report --sort=cover
-
-#######################################################################################
-# Code and Documentation Linters
-#######################################################################################
-[testenv:flake8]
-description = Run the full suite of flake8 linters & static code analysis
-skip_install = false
-extras =
-    tests
-commands =
-    flake8 --config tox.ini
-
-[testenv:rstcheck]
-description = Check formatting and syntax of RST files.
-skip_install = false
-extras =
-    tests
-commands =
-    rstcheck --config pyproject.toml --recursive ./
-
-[testenv:pre_commit]
-description = Run git pre-commit hooks not covered by the other linters.
-skip_install = false
-extras =
-    tests
-commands =
-    pre-commit run --all-files --show-diff-on-failure python-no-eval
-    pre-commit run --all-files --show-diff-on-failure python-no-log-warn
-    pre-commit run --all-files --show-diff-on-failure python-check-blanket-noqa
-    pre-commit run --all-files --show-diff-on-failure check-merge-conflict
-    pre-commit run --all-files --show-diff-on-failure check-yaml
-    pre-commit run --all-files --show-diff-on-failure check-case-conflict
-    pre-commit run --all-files --show-diff-on-failure debug-statements
-    pre-commit run --all-files --show-diff-on-failure name-tests-test
-
-[testenv:bandit]
-description = Check the codebase for common insecure code patterns.
-skip_install = false
-extras =
-    tests
-commands =
-    bandit -c pyproject.toml -r src/dispatch/
-
-;[testenv:mypy]
-;description = Run mypy type checking on the codebase.
-;skip_install = false
-;extras =
-;    tests
-;    types
-;commands =
-;    mypy --strict src tests
-
-[testenv:linters]
-description = Run the pre-commit, flake8 and bandit linters.
-skip_install = false
-extras =
-    {[testenv:pre_commit]extras}
-    {[testenv:bandit]extras}
-    {[testenv:rstcheck]extras}
-    {[testenv:flake8]extras}
-;    {[testenv:mypy]extras}
-commands =
-    {[testenv:pre_commit]commands}
-    {[testenv:bandit]commands}
-    {[testenv:rstcheck]commands}
-    {[testenv:flake8]commands}
-;    {[testenv:mypy]commands}
-
-#######################################################################################
-# Lint and Build the Docs
-#######################################################################################
-[testenv:doc8]
-description = Check the documentation input files for syntactical correctness.
-skip_install = false
-extras =
-    doc
-commands =
-    doc8 docs/ README.rst
-
-[testenv:docs]
-description = Build the HTML docs from scratch using Sphinx.
-skip_install = false
-extras =
-    {[testenv:doc8]extras}
-    {[testenv:rstcheck]extras}
-commands =
-    bash -c 'rm -rf docs/_build'
-    {[testenv:doc8]commands}
-    {[testenv:rstcheck]commands}
-;    sphinx-build -W -b html docs docs/_build/html
-    sphinx-build -b html docs docs/_build
-
-
-
-#######################################################################################
-# Test the code
-#######################################################################################
-[testenv:unit]
-description = Run all the software unit tests.
-extras =
-    tests
-    viz
-commands =
-    pytest {posargs} {[testenv]covargs} \
-      --doctest-modules {envsitepackagesdir}/dispatch \
-      tests
-
-[testenv:ci]
-description = Run all continuous integration (CI) checks & generate test coverage.
-skip_install = false
-recreate = true
-extras =
-    {[testenv:linters]extras}
-    {[testenv:docs]extras}
-    {[testenv:unit]extras}
-;    {[testenv:integration]extras}
-commands =
-    coverage erase
-    {[testenv:linters]commands}
-    {[testenv:docs]commands}
-    {[testenv:unit]commands}
-;    {[testenv:integration]commands}
-    {[testenv]covreport}
-
-#######################################################################################
-# Software Package Build & Release
-#######################################################################################
-[testenv:build]
-description = Prepare Python source and binary packages for release.
-basepython = python3
-skip_install = false
-commands =
-    bash -c 'rm -rf build/* dist/*'
-    python setup.py sdist bdist_wheel
-
-;[testenv:testrelease]
-;description = Do a dry run of Python package release using the PyPI test server.
-;basepython = python3
-;skip_install = false
-;extras =
-;    dev
-;commands =
-;    {[testenv:build]commands}
-;    twine check dist/*
-;    twine upload --sign --verbose --repository testpypi --skip-existing dist/*
-
-;[testenv:release]
-;description = Release the package to the production PyPI server.
-;basepython = python3
-;skip_install = true
-;extras =
-;    dev
-;commands =
-;    {[testenv:build]commands}
-;    twine check dist/*
-;    twine upload --sign --verbose --skip-existing dist/*
-
-#######################################################################################
-# Configuration for various tools.
-#######################################################################################
-
-[flake8]
-# A few linter errors and warnings that we are currently ignoring:
-# * W503, W504: Line break before / after binary operator.
-# * D401: Imperative mood.
-# * E501: Overlong line
-# * E203: Space before ':' (black recommends to ignore)
-# * RST201,RST203,RST301: Google docstrings aren't RST until after being processed by
-#   Napoleon. See https://github.com/peterjc/flake8-rst-docstrings/issues/17
-extend-ignore = W503,W504,D401,E501,E203,RST201,RST203,RST301,D105,C901
-inline-quotes = double
-max-line-length = 88
-docstring-convention = google
-# Files and directories that should not be subject to linting
-extend-exclude =
-    .env_tox,
-    .eggs,
-    build,
-# We have a backlog of complex functions being skipped with noqa: C901
-max-complexity = 10
-rst-roles =
-    attr,
-    class,
-    doc,
-    func,
-    meth,
-    mod,
-    obj,
-    py:const,
-    ref,
-    user,
-rst-directives =
-    envvar,
-    exception,
-percent-greedy = 2
-format-greedy = 2
-per-file-ignores =
-    __init__.py:F401