Error message

User warning: Trying to overwrite a cache redirect for "twig_tweak_block:system_breadcrumb_block:[configuration]=04c46ea912d2866a3a36c67326da1ef38f1c93cc822d6c45e1639f3decdebbdc:[wrapper]=1:[languages:language_interface]=en:[theme]=ntc:[user.permissions]=9dba55fd0080d37234c1391c5895ff85775043974dfaed0fb2a803d00e5805d9" with one that has nothing in common, old one at address "languages:language_interface, theme, user.permissions" was pointing to "url", new one points to "route, url.path, languages, user.node_grants:view". in Drupal\Core\Cache\VariationCache->set() (line 144 of core/lib/Drupal/Core/Cache/VariationCache.php).
Drupal\Core\Cache\VariationCache->set() (Line: 96)
Drupal\Core\Render\RenderCache->set() (Line: 127)
Drupal\Core\Render\PlaceholderingRenderCache->set() (Line: 584)
Drupal\Core\Render\Renderer->doRender() (Line: 248)
Drupal\Core\Render\Renderer->render() (Line: 484)
Drupal\Core\Template\TwigExtension->escapeFilter() (Line: 553)
__TwigTemplate_8c5871cf696ce414fa4178429accef6d___871458895->block_breadcrumb() (Line: 432)
Twig\Template->yieldBlock() (Line: 111)
__TwigTemplate_04e6306beee5ae4819d45c9bfb5407a1->doDisplay() (Line: 388)
Twig\Template->yield() (Line: 541)
__TwigTemplate_8c5871cf696ce414fa4178429accef6d___871458895->doDisplay() (Line: 388)
Twig\Template->yield() (Line: 266)
__TwigTemplate_8c5871cf696ce414fa4178429accef6d___1994190689->block_hero() (Line: 432)
Twig\Template->yieldBlock() (Line: 49)
__TwigTemplate_914e81f5e77cee2df67fada64651949c->doDisplay() (Line: 388)
Twig\Template->yield() (Line: 251)
__TwigTemplate_8c5871cf696ce414fa4178429accef6d___1994190689->doDisplay() (Line: 388)
Twig\Template->yield() (Line: 147)
__TwigTemplate_8c5871cf696ce414fa4178429accef6d->doDisplay() (Line: 388)
Twig\Template->yield() (Line: 344)
Twig\Template->display() (Line: 359)
Twig\Template->render() (Line: 51)
Twig\TemplateWrapper->render() (Line: 33)
twig_render_template() (Line: 348)
Drupal\Core\Theme\ThemeManager->render() (Line: 491)
Drupal\Core\Render\Renderer->doRender() (Line: 248)
Drupal\Core\Render\Renderer->render() (Line: 238)
Drupal\Core\Render\MainContent\HtmlRenderer->Drupal\Core\Render\MainContent\{closure}() (Line: 638)
Drupal\Core\Render\Renderer->executeInRenderContext() (Line: 239)
Drupal\Core\Render\MainContent\HtmlRenderer->prepare() (Line: 128)
Drupal\Core\Render\MainContent\HtmlRenderer->renderResponse() (Line: 90)
Drupal\Core\EventSubscriber\MainContentViewSubscriber->onViewRenderArray()
call_user_func() (Line: 111)
Drupal\Component\EventDispatcher\ContainerAwareEventDispatcher->dispatch() (Line: 186)
Symfony\Component\HttpKernel\HttpKernel->handleRaw() (Line: 76)
Symfony\Component\HttpKernel\HttpKernel->handle() (Line: 53)
Drupal\Core\StackMiddleware\Session->handle() (Line: 48)
Drupal\Core\StackMiddleware\KernelPreHandle->handle() (Line: 28)
Drupal\Core\StackMiddleware\ContentLength->handle() (Line: 201)
Drupal\page_cache\StackMiddleware\PageCache->fetch() (Line: 138)
Drupal\page_cache\StackMiddleware\PageCache->lookup() (Line: 87)
Drupal\page_cache\StackMiddleware\PageCache->handle() (Line: 57)
Drupal\advban\AdvbanMiddleware->handle() (Line: 50)
Drupal\ban\BanMiddleware->handle() (Line: 48)
Drupal\Core\StackMiddleware\ReverseProxyMiddleware->handle() (Line: 51)
Drupal\Core\StackMiddleware\NegotiationMiddleware->handle() (Line: 36)
Drupal\Core\StackMiddleware\AjaxPageState->handle() (Line: 51)
Drupal\Core\StackMiddleware\StackedHttpKernel->handle() (Line: 741)
Drupal\Core\DrupalKernel->handle() (Line: 19)
Type
Post Secondary
Credits
3.00

Introduces learners to the gas utility industry, its terminology, and definitions. Covers operation and safety procedures for hand and power tools, construction equipment, and excavation safety. Learners explore properties and characteristics of natural gas and propane.

Conditions
Students who specified one or more of these Programs of Study or Program Foci: Gas Utility Construction & Service

Availability & Registration

We offer the following class sections for this course (31-469-100). View more class specific details and registration information by selecting a class number.