diff --git a/acme/acme/crypto_util_test.py b/acme/acme/crypto_util_test.py
index 4046aa197..da433c5a2 100644
--- a/acme/acme/crypto_util_test.py
+++ b/acme/acme/crypto_util_test.py
@@ -18,7 +18,6 @@ from acme import test_util
 class SSLSocketAndProbeSNITest(unittest.TestCase):
     """Tests for acme.crypto_util.SSLSocket/probe_sni."""
 
-    _multiprocess_can_split_ = True
 
     def setUp(self):
         self.cert = test_util.load_comparable_cert('rsa2048_cert.pem')
@@ -69,7 +68,6 @@ class SSLSocketAndProbeSNITest(unittest.TestCase):
 class PyOpenSSLCertOrReqSANTest(unittest.TestCase):
     """Test for acme.crypto_util._pyopenssl_cert_or_req_san."""
 
-    _multiprocess_can_split_ = True
 
     @classmethod
     def _call(cls, loader, name):
@@ -140,7 +138,6 @@ class PyOpenSSLCertOrReqSANTest(unittest.TestCase):
 class RandomSnTest(unittest.TestCase):
     """Test for random certificate serial numbers."""
 
-    _multiprocess_can_split_ = True
 
     def setUp(self):
         self.cert_count = 5
diff --git a/acme/acme/standalone_test.py b/acme/acme/standalone_test.py
index 16669680c..48e13d0b6 100644
--- a/acme/acme/standalone_test.py
+++ b/acme/acme/standalone_test.py
@@ -23,7 +23,6 @@ from acme import test_util
 class TLSServerTest(unittest.TestCase):
     """Tests for acme.standalone.TLSServer."""
 
-    _multiprocess_can_split_ = True
 
     def test_bind(self):  # pylint: disable=no-self-use
         from acme.standalone import TLSServer
@@ -42,7 +41,6 @@ class TLSServerTest(unittest.TestCase):
 class TLSSNI01ServerTest(unittest.TestCase):
     """Test for acme.standalone.TLSSNI01Server."""
 
-    _multiprocess_can_split_ = True
 
     def setUp(self):
         self.certs = {b'localhost': (
@@ -70,7 +68,6 @@ class TLSSNI01ServerTest(unittest.TestCase):
 class HTTP01ServerTest(unittest.TestCase):
     """Tests for acme.standalone.HTTP01Server."""
 
-    _multiprocess_can_split_ = True
 
     def setUp(self):
         self.account_key = jose.JWK.load(
@@ -124,7 +121,6 @@ class HTTP01ServerTest(unittest.TestCase):
 class BaseDualNetworkedServersTest(unittest.TestCase):
     """Test for acme.standalone.BaseDualNetworkedServers."""
 
-    _multiprocess_can_split_ = True
 
     class SingleProtocolServer(socketserver.TCPServer):
         """Server that only serves on a single protocol. FreeBSD has this behavior for AF_INET6."""
@@ -174,7 +170,6 @@ class BaseDualNetworkedServersTest(unittest.TestCase):
 class TLSSNI01DualNetworkedServersTest(unittest.TestCase):
     """Test for acme.standalone.TLSSNI01DualNetworkedServers."""
 
-    _multiprocess_can_split_ = True
 
     def setUp(self):
         self.certs = {b'localhost': (
@@ -202,7 +197,6 @@ class TLSSNI01DualNetworkedServersTest(unittest.TestCase):
 class HTTP01DualNetworkedServersTest(unittest.TestCase):
     """Tests for acme.standalone.HTTP01DualNetworkedServers."""
 
-    _multiprocess_can_split_ = True
 
     def setUp(self):
         self.account_key = jose.JWK.load(
@@ -254,7 +248,6 @@ class HTTP01DualNetworkedServersTest(unittest.TestCase):
 class TestSimpleTLSSNI01Server(unittest.TestCase):
     """Tests for acme.standalone.simple_tls_sni_01_server."""
 
-    _multiprocess_can_split_ = True
 
     def setUp(self):
         # mirror ../examples/standalone
diff --git a/certbot-apache/certbot_apache/tests/augeas_configurator_test.py b/certbot-apache/certbot_apache/tests/augeas_configurator_test.py
index 742afce2d..c121ecdf3 100644
--- a/certbot-apache/certbot_apache/tests/augeas_configurator_test.py
+++ b/certbot-apache/certbot_apache/tests/augeas_configurator_test.py
@@ -13,7 +13,6 @@ from certbot_apache.tests import util
 class AugeasConfiguratorTest(util.ApacheTest):
     """Test for Augeas Configurator base class."""
 
-    _multiprocess_can_split_ = True
 
     def setUp(self):  # pylint: disable=arguments-differ
         super(AugeasConfiguratorTest, self).setUp()
diff --git a/certbot-apache/certbot_apache/tests/configurator_test.py b/certbot-apache/certbot_apache/tests/configurator_test.py
index 7c6b071da..90561d6ad 100644
--- a/certbot-apache/certbot_apache/tests/configurator_test.py
+++ b/certbot-apache/certbot_apache/tests/configurator_test.py
@@ -30,7 +30,6 @@ from certbot_apache.tests import util
 class MultipleVhostsTest(util.ApacheTest):
     """Test two standard well-configured HTTP vhosts."""
 
-    _multiprocess_can_split_ = True
 
     def setUp(self):  # pylint: disable=arguments-differ
         super(MultipleVhostsTest, self).setUp()
@@ -1369,7 +1368,6 @@ class MultipleVhostsTest(util.ApacheTest):
 class AugeasVhostsTest(util.ApacheTest):
     """Test vhosts with illegal names dependent on augeas version."""
     # pylint: disable=protected-access
-    _multiprocess_can_split_ = True
 
     def setUp(self):  # pylint: disable=arguments-differ
         td = "debian_apache_2_4/augeas_vhosts"
diff --git a/certbot-nginx/certbot_nginx/tests/configurator_test.py b/certbot-nginx/certbot_nginx/tests/configurator_test.py
index aa94abecb..996bd238b 100644
--- a/certbot-nginx/certbot_nginx/tests/configurator_test.py
+++ b/certbot-nginx/certbot_nginx/tests/configurator_test.py
@@ -24,7 +24,6 @@ from certbot_nginx.tests import util
 class NginxConfiguratorTest(util.NginxTest):
     """Test a semi complex vhost configuration."""
 
-    _multiprocess_can_split_ = True
 
     def setUp(self):
         super(NginxConfiguratorTest, self).setUp()
diff --git a/certbot/tests/cli_test.py b/certbot/tests/cli_test.py
index ba5e2775f..2fce412e2 100644
--- a/certbot/tests/cli_test.py
+++ b/certbot/tests/cli_test.py
@@ -26,7 +26,6 @@ PLUGINS = disco.PluginsRegistry.find_all()
 class TestReadFile(TempDirTestCase):
     '''Test cli.read_file'''
 
-    _multiprocess_can_split_ = True
 
     def test_read_file(self):
         rel_test_path = os.path.relpath(os.path.join(self.tempdir, 'foo'))
@@ -46,7 +45,6 @@ class TestReadFile(TempDirTestCase):
 class ParseTest(unittest.TestCase):  # pylint: disable=too-many-public-methods
     '''Test the cli args entrypoint'''
 
-    _multiprocess_can_split_ = True
 
     def setUp(self):
         reload_module(cli)
@@ -418,7 +416,6 @@ class ParseTest(unittest.TestCase):  # pylint: disable=too-many-public-methods
 class DefaultTest(unittest.TestCase):
     """Tests for certbot.cli._Default."""
 
-    _multiprocess_can_split_ = True
 
     def setUp(self):
         # pylint: disable=protected-access
@@ -439,7 +436,6 @@ class DefaultTest(unittest.TestCase):
 class SetByCliTest(unittest.TestCase):
     """Tests for certbot.set_by_cli and related functions."""
 
-    _multiprocess_can_split_ = True
 
     def setUp(self):
         reload_module(cli)
diff --git a/certbot/tests/ocsp_test.py b/certbot/tests/ocsp_test.py
index 91dd6f8d6..2d54274f0 100644
--- a/certbot/tests/ocsp_test.py
+++ b/certbot/tests/ocsp_test.py
@@ -13,7 +13,6 @@ ocsp: Use -help for summary.
 
 class OCSPTest(unittest.TestCase):
 
-    _multiprocess_can_split_ = True
 
     def setUp(self):
         from certbot import ocsp
diff --git a/certbot/tests/storage_test.py b/certbot/tests/storage_test.py
index df6391758..6c8f775e2 100644
--- a/certbot/tests/storage_test.py
+++ b/certbot/tests/storage_test.py
@@ -43,7 +43,6 @@ class BaseRenewableCertTest(test_util.ConfigTestCase):
     your test.  Check :class:`.cli_test.DuplicateCertTest` for an example.
 
     """
-    _multiprocess_can_split_ = True
 
     def setUp(self):
         from certbot import storage