UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
SCHEDULE 13G
Under the Securities Exchange Act of 1934
(Amendment No. _1_)*
Acuity Brands Inc.
(Name of Issuer)
Common Stock
(Title of Class of Securities)
00508Y102
(CUSIP Number)
December 31, 2012
(Date of Event Which Requires Filing of this Statement)
Check the appropriate box to designate the rule pursuant
to which this Schedule is filed:
[ X ] Rule 13d-1(b)
[ ] Rule 13d-1(c)
[ ] Rule 13d-1(d)
* The remainder of this cover page shall be filled out
for a reporting person's initial filing on this form
with respect to the subject class of securities, and
for any subsequent amendment containing information which
would alter the disclosures provided in a prior cover page.
The information required in the remainder of this cover
page shall not be deemed to be "filed" for the purpose
of Section 18 of the Securities Exchange Act of 1934
("Act") or otherwise subject to the liabilities of that
section of the Act but shall be subject to all other
provisions of the Act (however, see the Notes).
CUSIP No.
00508Y102
1
NAMES OF REPORTING PERSONS
Standard Life Investments Limited
2
CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
SEE INSTRUCTIONS)
(a) [ ]
(b) [ X]
3
SEC USE ONLY
4
CITIZENSHIP OR PLACE OF ORGANIZATION
United Kingdom
5
SOLE VOTING POWER
1,847,629NUMBER OF
SHARES6
SHARED
VOTING POWER
BENEFICIALLY
0OWNED BY
EACH
7
SOLE DISPOSITIVE POWER
REPORTING
1,847,629PERSON
WITH:
8
SHARED DISPOSITIVE POWER
0
9
AGGREGATE AMOUNT
BENEFICIALLY OWNED BY EACH REPORTING PERSON
1,847,629
10
CHECK IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES
CERTAIN SHARES (SEE INSTRUCTIONS)
?
11
PERCENT OF
CLASS REPRESENTED BY AMOUNT IN ROW (9)
4.3%
12
TYPE OF
REPORTING PERSON (SEE INSTRUCTIONS)
HC
Item 1(a) Name of issuer: Acuity Brands Inc.
Item 1(b) Address of issuer's principal executive offices:
1170 Peachtree Street, NE
Suite 2300
Atlanta, Georgia 30309-7676
2(a) Name of person filing: Standard Life Investments Limited
2(b) Address or principal business office or, if none,
residence: One George Street, Edinburgh EH2 2LL
2(c) Citizenship: United Kingdom
2(d) Title of class of securities: Common Stock
2(e) CUSIP No.: 00508Y102
____________________
Item 3. If this statement is filed pursuant to 240.13d-1(b) or
240.13d-2(b) or (c), check whether the person filing is a:
(a) [ ] Broker or dealer registered under section 15 of the
Act (15 U.S.C. 78o);
(b) [ ] Bank as defined in section 3(a)(6) of the Act (15 U.S.C. 78c);
(c) [ ] Insurance company as defined in section 3(a)(19) of
the Act (15 U.S.C. 78c);
(d) [ ] Investment company registered under section 8 of the
Investment Company Act of 1940 (15 U.S.C 80a-8);
(e) [ ] An investment adviser in accordance with 240.13d-1(b)(1)(ii)(E);
(f) [ ] An employee benefit plan or endowment fund in accordance with
240.13d-1(b)(1)(ii)(F);
(g) [ X ] A parent holding company or control person in accordance with
240.13d-1(b)(1)(ii)(G);
(h) [ ] A savings associations as defined in Section 3(b) of the Federal
Deposit Insurance Act (12 U.S.C. 1813);
(i) [ ] A church plan that is excluded from the definition of an investment
company under section 3(c)(14) of the Investment Company Act of
1940 (15 U.S.C. 80a-3);
(j) [ ] A non-U.S. institution in accordance with
240.13d-1(b)(1)(ii)(J);
(k) [ ] Group, in accordance with 240.13d-1(b)(1)(ii)(K).
If filing as a non-U.S. institution in accordance with
240.13d-1(b)(1)(ii)(J), please specify the type of institution:
Item 4. Ownership
Provide the following information regarding the aggregate number
and percentage of the class of securities of the issuer identified in Item 1.
(a) Amount beneficially owned: 1,847,629
(b) Percent of class: 4.3%
(c) Number of shares as to which the person has:
(i) Sole power to vote or to direct the vote: 1,847,629
(ii) Shared power to vote or to direct the vote: 0
(iii) Sole power to dispose or to direct the disposition of: 1,847,629
(iv) Shared power to dispose or to direct the disposition of: 0
Instruction. For computations regarding securities which represent
a right to acquire an underlying security see 240.13d-3(d)(1).
Item 5. Ownership of 5 Percent or Less of a Class. If this statement is
being filed to report the fact that as of the date hereof the reporting
person has ceased to be the beneficial owner of more than 5 percent of
the class of securities, check the following [ X ].
Note: Additional shares have been purchased since this amendment.
Instruction. Dissolution of a group requires a response to this item.
Item 6. Ownership of More than 5 Percent on Behalf of Another Person.
If any other person is known to have the right to receive or the power
to direct the receipt of dividends from, or the proceeds from the sale
of, such securities, a statement to that effect should be included in
response to this item and, if such interest relates to more than 5
percent of the class, such person should be identified. A listing of
the shareholders of an investment company registered under the Investment
Company Act of 1940 or the beneficiaries of employee benefit plan, pension
fund or endowment fund is not required.
Not Applicable
Item 7. Identification and Classification of the Subsidiary Which
Acquired the Security Being Reported on by the Parent Holding Company
or Control Person. If a parent holding company or control person has
filed this schedule pursuant to Rule 13d-1(b)(1)(ii)(G), so indicate under
Item 3(g) and attach an exhibit stating the identity and the Item 3
classification of the relevant subsidiary. If a parent holding company
or control person has filed this schedule pursuant to Rule 13d-1(c) or
Rule 13d-1(d), attach an exhibit stating the identification of the
relevant subsidiary.
Not Applicable
Item 8. Identification and Classification of Members of the Group
If a group has filed this schedule pursuant to 240.13d-1(b)(1)(ii)(J),
so indicate under Item 3(j) and attach an exhibit stating the identity
and Item 3 classification of each member of the group. If a group has
filed this schedule pursuant to Rule 13d-1(c) or Rule 13d-1(d), attach
an exhibit stating the identity of each member of the group.
Item 9. Notice of Dissolution of Group. Notice of dissolution of a
group may be furnished as an exhibit stating the date of the
dissolution and that all further filings with respect to transactions
in the security reported on will be filed, if required, by members of the
group, in their individual capacity. See Item 5.
Not Applicable
Item 10. Certifications
(a) The following certification shall be included if the statement is
filed pursuant to 240.13d-1(b):
By signing below I certify that, to the best of my knowledge and belief,
the securities referred to above were acquired and are held in the ordinary
course of business and were not acquired and are not held for the purpose
of or with the effect of changing or influencing the control of the issuer
of the securities and were not acquired and are not held in connection
with or as a participant in any
transaction having that purpose or effect.
(b) The following certification shall be included if the statement
is filed pursuant to 240.13d-1(b)(1)(ii)(J), or if the statement
is filed pursuant to 240.13d-1(b)(1)(ii)(K) and a member of the group is
a non-U.S. institution eligible to file pursuant to 240.13d-1(b)(1)(ii)(J):
By signing below I certify that, to the best of my knowledge and
belief, the foreign regulatory scheme applicable to [insert particular
category of institutional investor] is substantially comparable
to the regulatory scheme applicable to the functionally equivalent
U.S. institution(s). I also undertake to furnish to the Commission staff,
upon request, information that would otherwise be disclosed in a Schedule 13D.
(c) The following certification shall be included if the statement is
filed pursuant to 240.13d-1(c):
SIGNATURE
After reasonable inquiry and to the best of my knowledge and belief,
I certify that the information set forth in this statement is true,
complete and correct.
Date: March 14, 2013 By: Eric Rose
By: /s/ Eric Rose
Name: Eric Rose
Title: US Risk & Compliance