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diff --git a/guidelines/accessibility/guideline-1.js b/guidelines/accessibility/guideline-1.js
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+/**
+ * Provide equivalent alternatives to auditory and visual content
+ */
+
+exports.name        = "Equivalent Alternatives";
+exports.description = "";
+
+exports.rule        = function(report) {
+
+
+  /* Checkpoint 1.1 [Priority 1] **********************************************/
+
+  var hasAlt = function(ix) {
+    // TODO: strip space from the alt attribute to prevent ' ' from passing
+    // the test
+    if(_.isEmpty($(this).attr('alt')) && _.isEmpty($(this).attr('longdesc'))) {
+      report.error('No alt/longdesc specified', this);
+    }
+  };
+
+  var hasText = function(ix) {
+    // TODO: strip space from the text to prevent ' ' from passing the test
+    if(_.isEmpty($(this).text())) {
+      report.error('No text node', this);
+    }
+  };
+
+  // images with semantic meaning should have an alt attribute.
+  $5('a').find('img')
+    .add($5('dl').find('img'))
+    .add($5('dd').find('img'))
+      .each(hasAlt);
+
+  // All `input` tags must have an alt attribute.
+  $5('input').each(hasAlt);
+
+  // All `applet` tags must have a text node
+  $5('applet').each(hasText);
+
+  // All `object` tags must have a text node
+  $5('object').each(hasText).each(hasAlt);
+
+  // TODO: what's the best way to classify content that's `complex`?
+
+  // All `area` elements of an image map should have alt attributes.  This isn't
+  // quite a faithful implementation, as it doesn't take into account the case
+  // where an `a` tag is wrapped around the `area` tag.
+  $5('map').find('area').each(hasAlt);
+
+  // TODO: figure out a good way to handle frames.
+  // TODO: figure out a good way to handle scripts.
+
+
+  /* Checkpoint 1.2 [Priority 1] **********************************************/
+
+  // TODO
+
+
+  /* Checkpoint 1.3 [Priority 1] **********************************************/
+
+  // TODO
+
+
+  /* Checkpoint 1.4 [Priority 1] **********************************************/
+
+  // TODO
+
+
+  /* Checkpoint 1.5 [Priority 3] **********************************************/
+
+};