decorative image
Official websites use .gov
A .gov website belongs to an official government organization in the United States.
decorative image
Secure .gov websites use HTTPS
A lock ( ) or https:// means you've safely connected to the .gov website. Share sensitive information only on official, secure websites.

n/a Warning! This browser is not supported - Some features might not work. Try using a different browser such as Chrome, Edge, Firefox, or Safari.

').insertAfter(".two4"); if (!$(".nav-item").hasClass("resizedfrommoibletofull")) { $(".nav-item").click(function () { var link = $(this); $(this).find('.sub-nav').slideToggle('slow', function () { if ($(this).is(':visible')) { $(this).parent().find('span.openclose').html(''); } else { $(this).parent().find('span.openclose').html(''); } $(this).closest(".nav-item").toggleClass('openedmenu'); $(this).closest(".nav-item").find('a:first').toggleClass('openedmenu-link-active'); }); }); } } else if ($(window).width() > 820) { $(".mobile-only").toggleClass("hide"); $('.sub-nav li').css({ "max-width": "400px" }); $(".mobile-menu").toggleClass("hide"); $(".openclose").hide(); // Splits the blog and news area on the home page for mobile // Changed nav:first to nav because there was a conflict with the Drupal admin menus at the top $("nav").accessibleMegaMenu({ /* prefix for generated unique id attributes, which are required to indicate aria-owns, aria-controls and aria-labelledby */ uuidPrefix: "accessible-megamenu", /* css class used to define the megamenu styling */ menuClass: "nav-menu", /* css class for a top-level navigation item in the megamenu */ topNavItemClass: "nav-item", /* css class for a megamenu panel */ panelClass: "sub-nav", /* css class for a group of items within a megamenu panel */ panelGroupClass: "sub-nav-group", /* css class for the hover state */ hoverClass: "hover", /* css class for the focus state */ focusClass: "focus", /* css class for the open state */ openClass: "open" }); } // this code is OK to be executed several times when the user resizes the window $(window).resize(function () { //This was causing the mobile view menu to not work so leave commented out $( ".main-nav" ).hide(); $('.col-sm-12').toggleClass('zindexminus1'); $('.col-sm-9').toggleClass('zindexminus1'); $('.col-sm-6').toggleClass('zindexminus1'); var win = $(this); //this = window if (win.width() <= 820) { console.log("mobile"); $('.nav-item').addClass("resizedtomobile"); $('.sub-nav li').css({ "width": "100%" }); $("div.sidebar_first").appendTo("div.mobile_sidebar_first"); $(".cross").hide(); // $( ".main-nav" ).hide(); $(".hamburger").show(); $(".searchbutton").show(); $(".openclose").show(); $(".site-search").insertAfter(".searchbutton"); $(".site-search").css('display', 'none'); $(".searchsitetext").css('display', 'none'); $(".searchbutton").click(function () { $(".site-search").toggleClass("show"); $(".site-search").toggleClass("site-search-mobile"); }); // $(".mobile-menu").toggleClass("hide"); } // Checks if the window is changed to more than 820 pixels then moves back the leftnav if (win.width() > 820) { $('.nav-item').addClass("resizedfrommoibletofull"); if ($(".nav-item").hasClass("resizedfrommoibletofull")) { $("div.sidebar_first").appendTo("div.body-row"); // console.log("resizedfrommoibletofull yes!!!!"); } } }); // This code gets executed after the time has stopped aka when the user has stopped resizing the window, if this is not present the open and close function repeats several times function doneResizing() { var win = $(this); //this = window if (win.width() <= 820) { $('.grants-logo').css({ "float": "none" }); $('.col-sm-12').toggleClass('zindexminus1'); $('.col-sm-9').toggleClass('zindexminus1'); $('.col-sm-6').toggleClass('zindexminus1'); $('.sub-nav li').css({ "width": "100%" }); $('.sub-nav li').css({ "max-width": "100%" }); //Destroy accessibility plugin on mobile $('.sub-nav').removeAttr('aria-expanded'); // Splits the blog and news area on the home page for mobile $(".two4-news").css('display', 'none'); $('
News article iconNews
').insertAfter(".two4"); // This code only gets executed if the user is on full screen then moves the window to mobile if ($(".nav-item").hasClass("resizedtomobile") && (!$(".nav-item").hasClass("alreadymobile")) && (!$(".nav-item").hasClass("resizedfrommoibletofull"))) { $(".nav-item").click(function () { var link = $(this); $(this).find('.sub-nav').slideToggle('slow', function () { if ($(this).is(':visible')) { $(this).parent().find('span.openclose').html(''); } else { $(this).parent().find('span.openclose').html(''); } }); $(this).closest(".nav-item").toggleClass('openedmenu'); $(this).closest(".nav-item").find('a:first').toggleClass('openedmenu-link-active'); }); // $("div.sidebar_first").appendTo("div.body-row"); } } else { // Splits the blog and news area on the home page for mobile $(".two4-news2").appendTo(".two4"); $('.two4-news2').css({ "box-shadow": "none" }); $('.grants-logo').css({ "float": "left" }); $('.col-sm-12').removeClass('zindexminus1'); $('.col-sm-9').removeClass('zindexminus1'); $('.col-sm-6').removeClass('zindexminus1'); $(".site-search").appendTo("#searcharea"); // $('.nav-item').addClass("resizedfrommoibletofull"); $('.sub-nav li').css({ "max-width": "400px" }); $(".hamburger").hide(); $(".searchbutton").hide(); $('.site-search').css("display", "block"); $(".main-nav").show(); $(".openclose").hide(); $("div.sidebar_first").appendTo("div.revertback_sidebar_first"); $('.sub-nav').css("display", ""); // if( $('nav:first').data('plugin_accessibleMegaMenu') ){ //Restart the plugin // $('nav:first').data('plugin_accessibleMegaMenu').init(); // } else { $('.sub-nav').attr('aria-expanded', 'true'); $("nav").accessibleMegaMenu({ /* prefix for generated unique id attributes, which are required to indicate aria-owns, aria-controls and aria-labelledby */ uuidPrefix: "accessible-megamenu", /* css class used to define the megamenu styling */ menuClass: "nav-menu", /* css class for a top-level navigation item in the megamenu */ topNavItemClass: "nav-item", /* css class for a megamenu panel */ panelClass: "sub-nav", /* css class for a group of items within a megamenu panel */ panelGroupClass: "sub-nav-group", /* css class for the hover state */ hoverClass: "hover", /* css class for the focus state */ focusClass: "focus", /* css class for the open state */ openClass: "open" }); // } } } });

Policies & Regulations - Human Subjects

For research involving human subjects, NIH has specific requirements for research staff, and policies regarding research conduct, safety monitoring, and reporting of information about research progress. Funded research must also comply with federal regulations. Navigate through the topics below to learn more about the human subjects policies and regulations, and the related requirements for staff on NIH-funded projects.
 

Image of woman

Policies and Policy Notices

Guide notices and policy links related to human subjects research at NIH.

Four images including, children, a pregnant women, a prisoner, and elderly person in a hospital gown

Vulnerable and Other Populations Requiring Additional Protections

Research with some groups require additional steps and safeguards for potential participants. Click on the link above to find out more about research with vulnerable populations and groups requiring additional protections.

Two people in front of a computer with a clipboard and paperwork

Data and Safety Monitoring

Find out about the Data and Safety monitoring requirements for NIH-supported human subjects research.
 

-